US2546149A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Latch
Assignee: DANIEL WARREN LEWIS
•
Filing: 1945-09-19
•
Granted: 1951-03-27
•
Expires: 1965-09-19
Abstract
No abstract record available.
Inventors
- 👤 Augustus M Bowzer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 05:11
CPC Classifications
E; E05; E05F; E05F11/00; Y; Y10; Y10T; Y10T292/00; Y10T292/08; Y10T292/096; Y10T292/1014; Y10T292/1022; Y10T292/1028; Y10T428/00; Y10T428/12; Y10T428/12361
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US953757A
Cited
US1158816A
Cited
GB165646A
Cited
AT146271B
Cited
US2038070A
Cited
US2099806A
Cited
US2202909A
Cited
US2409966A
Cited
US2343525A
Cited
US2450723A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-03-26 | 1954-09-25 | 1955-03-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-03-26 | 1958-09-25 | 1959-03-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-03-26 | 1962-09-25 | 1963-03-27 | $7700.00 | Window Closed / Lapsed |