Patent US3310472A successfully refreshed from Google Patents.
US3310472A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sea shell perfume diffuser
Assignee: NORDA ESSENTIAL OIL AND CHEMIC
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Filing: 1963-05-20
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Granted: 1967-03-21
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Expires: 1983-05-20
Abstract
No abstract record available.
Inventors
- 👤 Hermann J Kohl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 09:06
CPC Classifications
A; A61; A61L; A61L9/00; A61L9/01; A61L9/015; A61L9/04; A61L9/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
21 words
A A PERFUME DIFFUSER, A SEAL SHELL WHICH COMPRISES AN OUTER LAYER OF CONCHYOLIN AND IS IMPREGNATED WITH A PERFUME OIL.
Claim 2
Dependent Claim
21 words
A A PERFUME DIFFUSER, A SEAL SHELL WHICH COMPRISES AN OUTER LAYER OF CONCHYOLIN AND IS IMPREGNATED WITH A PERFUME OIL.
References Cited (Backward Citations)
US2174887A
Cited
US2184526A
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US2210311A
Cited
US2731360A
Cited
US2877134A
Cited
US2809863A
Cited
US2988284A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-03-20 | 1970-09-19 | 1971-03-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-03-20 | 1974-09-19 | 1975-03-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-03-20 | 1978-09-19 | 1979-03-21 | $7700.00 | Window Closed / Lapsed |