US2684545A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Calendar
Assignee: Individual
•
Filing: 1951-06-08
•
Granted: 1954-07-27
•
Expires: 1971-06-08
Abstract
No abstract record available.
Inventors
- 👤 Leon G Talbot
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 08:21
CPC Classifications
G; G09; G09D; G09D3/00; G09D3/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US465294A
Cited
US1613769A
Cited
US1711041A
Cited
US1949328A
Cited
US2397877A
Cited
US2499329A
Cited
US2605567A
Cited
US2584810A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-07-26 | 1958-01-25 | 1958-07-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-07-26 | 1962-01-25 | 1962-07-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-07-26 | 1966-01-25 | 1966-07-27 | $7700.00 | Window Closed / Lapsed |