US2665935A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Door fastener
Assignee: Individual
•
Filing: 1948-10-07
•
Granted: 1954-01-12
•
Expires: 1968-10-07
Abstract
No abstract record available.
Inventors
- 👤 Patterson William
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 23:16
CPC Classifications
E; E05; E05C; E05C19/00; E05C19/18; E05C19/184; Y; Y10; Y10T; Y10T292/00; Y10T292/37; Y10T292/379
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US794400A
Cited
US885583A
Cited
US965913A
Cited
US1579298A
Cited
US1845038A
Cited
US1668983A
Cited
US2226640A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-01-11 | 1957-07-13 | 1958-01-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-01-11 | 1961-07-13 | 1962-01-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-01-11 | 1965-07-13 | 1966-01-12 | $7700.00 | Window Closed / Lapsed |