US2542876A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Latch construction
Assignee: Individual
•
Filing: 1945-04-30
•
Granted: 1951-02-20
•
Expires: 1965-04-30
Abstract
No abstract record available.
Inventors
- 👤 Main Andrew
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 11:00
CPC Classifications
G; G07; G07D; G07D9/00; G07D9/06; Y; Y10; Y10T; Y10T292/00; Y10T292/08; Y10T292/0801; Y10T292/0848; Y10T292/306; Y10T292/308; Y10T292/68; Y10T292/696; Y10T292/702
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1628508A
Cited
US1070580A
Cited
US1105620A
Cited
US1105621A
Cited
US1293695A
Cited
US1459701A
Cited
US1504992A
Cited
US1891224A
Cited
US1934105A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-02-19 | 1954-08-21 | 1955-02-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-02-19 | 1958-08-21 | 1959-02-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-02-19 | 1962-08-21 | 1963-02-20 | $7700.00 | Window Closed / Lapsed |