US2462873A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Suspension unit
Assignee: Individual
•
Filing: 1945-06-01
•
Granted: 1949-03-01
•
Expires: 1965-06-01
Abstract
No abstract record available.
Inventors
- 👤 Harry A Knox
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 06:34
CPC Classifications
B; B62; B62D; B62D55/00; B62D55/08; B62D55/104; B62D55/108
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US897270A
Cited
GB136049A
Cited
US2011565A
Cited
FR808204A
Cited
US2218634A
Cited
US2260634A
Cited
US2315421A
Cited
US2323919A
Cited
US2333107A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-02-29 | 1952-08-30 | 1953-03-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-02-29 | 1956-08-30 | 1957-03-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-02-29 | 1960-08-30 | 1961-03-01 | $7700.00 | Window Closed / Lapsed |