US3411397A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Plastic fastener with rotatably releasable expander
Assignee: United Carr Inc
•
Filing: 1967-03-06
•
Granted: 1968-11-19
•
Expires: 1987-03-06
Abstract
No abstract record available.
Inventors
- 👤 Birmingham Douglas William
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 09:08
CPC Classifications
F; F16; F16B; F16B19/00; F16B19/04; F16B19/08; F16B19/10; F16B19/1027; F16B19/1036; F16B19/1081
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
FR973648A
Cited
US2552066A
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US2745620A
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GB855285A
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US2997910A
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US3203304A
Cited
US3319510A
Cited
FR1306092A
Cited
GB976418A
Cited
US3272061A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-11-19 | 1972-05-20 | 1972-11-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-11-19 | 1976-05-20 | 1976-11-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-11-19 | 1980-05-20 | 1980-11-19 | $7700.00 | Window Closed / Lapsed |