US2283304A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Latch mechanism
Assignee: Brown Instruments Co
•
Filing: 1941-03-22
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Granted: 1942-05-19
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Expires: 1961-03-22
Abstract
No abstract record available.
Inventors
- 👤 Calvin C Williams
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:18
CPC Classifications
E; E05; E05C; E05C3/00; E02; E02D; E02D29/00; E02D29/12; E02D29/14; E05C3/02; E05C3/04; E05C3/041; E05C3/042; H; H02; H02B; H02B1/00; H02B1/26; H02B1/30; H02B1/38; Y; Y10; Y10T; Y10T292/00; Y10T292/08; Y10T292/1043; Y10T292/1075; Y10T292/1094; Y10T292/20; Y10T292/221; Y10T292/42; Y10T292/444
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1945-05-18 | 1945-11-17 | 1946-05-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1949-05-18 | 1949-11-17 | 1950-05-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1953-05-18 | 1953-11-17 | 1954-05-19 | $7700.00 | Window Closed / Lapsed |