US2873991A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Latch
Assignee: Langenau Manufacturing Co
•
Filing: 1954-12-10
•
Granted: 1959-02-17
•
Expires: 1974-12-10
Abstract
No abstract record available.
Inventors
- 👤 Galen L Larimore
- 👤 Benjamin H Matthews
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 14:56
CPC Classifications
B; B65; B65D; B65D45/00; B65D45/02; B65D45/16; E; E05; E05C; E05C3/00; E05C3/02; E05C3/04; E05C3/041; Y; Y10; Y10S; Y10S27/00; Y10S27/01; Y10T; Y10T292/00; Y10T292/08; Y10T292/0863; Y10T292/0864; Y10T292/1039; Y10T292/1041
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US272333A
Cited
US384181A
Cited
US395513A
Cited
US534987A
Cited
AT9130B
Cited
US1541093A
Cited
US1604977A
Cited
US1621624A
Cited
DE570305C
Cited
US2187426A
Cited
US2595485A
Cited
US2684516A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-02-16 | 1962-08-18 | 1963-02-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-02-16 | 1966-08-18 | 1967-02-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-02-16 | 1970-08-18 | 1971-02-17 | $7700.00 | Window Closed / Lapsed |