Patent US2497892A successfully refreshed from Google Patents.
US2497892A
Expired / Lapsed
US
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Cap
Assignee: Individual
•
Filing: 1946-03-07
•
Granted: 1950-02-21
•
Expires: 1966-03-07
Abstract
No abstract record available.
Inventors
- 👤 Klar Adolph
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 21:36
CPC Classifications
A; A42; A42B; A42B1/00; A42B1/04; A42B1/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US661711A
Cited
US727793A
Cited
US1046690A
Cited
GB191100571A
Cited
US1207440A
Cited
US1541810A
Cited
US2068281A
Cited
GB487978A
Cited
US2345407A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-02-20 | 1953-08-22 | 1954-02-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-02-20 | 1957-08-22 | 1958-02-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-02-20 | 1961-08-22 | 1962-02-21 | $7700.00 | Window Closed / Lapsed |