US2640476A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pneumatic gun
Assignee: Individual
•
Filing: 1949-07-22
•
Granted: 1953-06-02
•
Expires: 1969-07-22
Abstract
No abstract record available.
Inventors
- 👤 Leland K Spink
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 22:46
CPC Classifications
F; F41; F41B; F41B11/00; F41B11/60; F41B11/62; F41B11/50; F41B11/55
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US452882A
Cited
US471176A
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US614532A
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US632526A
Cited
GB190714447A
Cited
US2301653A
Cited
US2327653A
Cited
GB607444A
Cited
US2526592A
Cited
US2537358A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-06-01 | 1956-12-01 | 1957-06-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-06-01 | 1960-12-01 | 1961-06-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-06-01 | 1964-12-01 | 1965-06-02 | $7700.00 | Window Closed / Lapsed |