US2493034A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hatch cover fastener
Assignee: Individual
•
Filing: 1945-07-03
•
Granted: 1950-01-03
•
Expires: 1965-07-03
Abstract
No abstract record available.
Inventors
- 👤 Sabins Rolland Clifford
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 18:36
CPC Classifications
B; B63; B63B; B63B19/00; B63B19/12; B63B19/24; Y; Y10; Y10T; Y10T292/00; Y10T292/23; Y10T292/237
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US458525A
Cited
US879137A
Cited
FR10419E
Cited
US1092260A
Cited
US1215905A
Cited
US1300633A
Cited
US2323238A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-01-02 | 1953-07-04 | 1954-01-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-01-02 | 1957-07-04 | 1958-01-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-01-02 | 1961-07-04 | 1962-01-03 | $7700.00 | Window Closed / Lapsed |