US2499340A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Air gun
Assignee: PAUL S LINFORTH
•
Filing: 1942-05-27
•
Granted: 1950-02-28
•
Expires: 1962-05-27
Abstract
No abstract record available.
Inventors
- 👤 William S Wells
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 10:11
CPC Classifications
F; F41; F41B; F41B11/00; F41B11/50; F41B11/51; F41A; F41A9/00; F41A9/01; F41A9/06; F41A9/09; F41A9/10; F41A9/13; F41A9/16; F41A9/17; F41A9/18; F41B11/70; F41B11/72; F41B11/723
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US18634A
Cited
US436965A
Cited
US1026303A
Cited
US1078487A
Cited
US1677810A
Cited
GB476005A
Cited
US2288891A
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 |