US2499329A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Calendar charactered slide type
Assignee: Individual
•
Filing: 1946-07-05
•
Granted: 1950-02-28
•
Expires: 1966-07-05
Abstract
No abstract record available.
Inventors
- 👤 Charles P Potter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 23:11
CPC Classifications
G; G09; G09D; G09D3/00; G09D3/04; B; B42; B42D; B42D5/00; B42D5/04; B42D5/043; B42D5/045
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US260531A
Cited
US2335713A
Cited
US704208A
Cited
US1052000A
Cited
US1066642A
Cited
GB191223059A
Cited
US1187371A
Cited
US1977555A
Cited
US2131482A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-02-27 | 1953-08-29 | 1954-02-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-02-27 | 1957-08-29 | 1958-02-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-02-27 | 1961-08-29 | 1962-02-28 | $7700.00 | Window Closed / Lapsed |