US2450029A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Compressed air gun
Assignee: PAUL S LINFORTH
•
Filing: 1941-09-23
•
Granted: 1948-09-28
•
Expires: 1961-09-23
Abstract
No abstract record available.
Inventors
- 👤 William S Wells
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 21:15
CPC Classifications
F; F41; F41B; F41B11/00; F41B11/50; F41B11/51; F41B11/60; F41B11/68; F41B11/681; F41B11/683; F41B11/70; F41B11/73
Claims Analysis
Total Claims: 0
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US2274927A
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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) | 1951-09-28 | 1952-03-29 | 1952-09-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-09-28 | 1956-03-29 | 1956-09-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-09-28 | 1960-03-29 | 1960-09-28 | $7700.00 | Window Closed / Lapsed |