US2528462A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Self-loading air gun
Assignee: PAUL S LINFORTH
•
Filing: 1944-08-21
•
Granted: 1950-10-31
•
Expires: 1964-08-21
Abstract
No abstract record available.
Inventors
- 👤 William S Wells
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 09:47
CPC Classifications
F; F41; F41B; F41B11/00; F41B11/50; F41B11/51; F41A; F41A9/00; F41A9/61; F41A9/62; F41B11/70; F41B11/72; F41B11/723
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2227161A
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US2293957A
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US2281142A
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US2299073A
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US2301653A
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US2309339A
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US2398434A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-10-30 | 1954-05-01 | 1954-10-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-10-30 | 1958-05-01 | 1958-10-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-10-30 | 1962-05-01 | 1962-10-31 | $7700.00 | Window Closed / Lapsed |