US3924772A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Airtight container cap
Assignee: Fidenza Vetraria SpA SA
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Filing: 1975-01-30
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Granted: 1975-12-09
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Expires: 1995-01-30
Abstract
Abstract An airtight container cap which comprises a ring-nut provided, on its side surface, with at least one window or slot, and on its upper surface with a circular hole, a stopper and a gasket of elastic material, said stopper being removably engagable with said ring-nut and said elastic gasket, with the gasket disposed inside the ring-nut in a position corresponding to the window.
Inventors
- 👤 Eugenio Magnani
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:40
CPC Classifications
B; B65; B65D; B65D51/00; B65D51/14; B65D51/145; B65D41/00; B65D41/02; B65D41/28
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
63 words
An airtight container cap comprising a ring-nut provided, on the top surface thereof, with a circular hole and on the side surface thereof, with at least one window, a stopper adapted for removable engagement with the circular hole in said ring-nut and an elastic gasket provided with a central opening adapted to be removably inserted within said ring-nut in alignment with the window.
Claim 2
Dependent Claim
63 words
An airtight container cap comprising a ring-nut provided, on the top surface thereof, with a circular hole and on the side surface thereof, with at least one window, a stopper adapted for removable engagement with the circular hole in said ring-nut and an elastic gasket provided with a central opening adapted to be removably inserted within said ring-nut in alignment with the window.
Claim 3
Dependent Claim
95 words
An airtight container cap according to claim 1, wherein the stopper includes a central portion having a diameter substantially equal to that of the ring-nut, an upper portion having a diameter substantially equal to that of the circular hole in the ring-nut to facilitate removable engagement of the stopper in said circular hole, and a lower portion having a diameter substantially equal to the diameter of the central opening in the gasket to facilitate the removable insertion of the lower portion within said central opening and the removable insertion of the gasket within said ring-nut.
Claim 4
Dependent Claim
26 words
An airtight container cap according to claim 1, wherein the ring-nut includes sealing means for securing the cap to a container provided with complementary sealing means.
Claim 5
Dependent Claim
31 words
An airtight container cap according to claim 3, wherein the sealing means in the ring-nut is an internal thread and the complementary sealing means on the container is a complementary thread.
Claim 6
Dependent Claim
31 words
An airtight container cap according to claim 1, wherein the ring-nut is formed of a plastic material, the stopper is formed of glass and the elastic gasket is formed of rubber.
Claim 7
Dependent Claim
14 words
In combination, an airtight container cap as claimed in claim 1 and a container.
References Cited (Backward Citations)
US2270729A
Cited
US2427819A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-12-08 | 1979-06-09 | 1979-12-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-12-08 | 1983-06-09 | 1983-12-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-12-08 | 1987-06-09 | 1987-12-09 | $7700.00 | Window Closed / Lapsed |