US1420318A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pneumatic tool
Assignee: Individual
•
Filing: 1918-07-08
•
Granted: 1922-06-20
•
Expires: 1938-07-08
Abstract
No abstract record available.
Inventors
- 👤 William H Keller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 02:04
CPC Classifications
B; B25; B25D; B25D17/00; B25D17/04; F; F16; F16B; F16B2200/00; F16B2200/69; F16B2200/71; F16B2200/73; Y; Y10; Y10T; Y10T403/00; Y10T403/60; Y10T403/602; Y10T403/70; Y10T403/7009
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1925-06-19 | 1925-12-19 | 1926-06-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1929-06-19 | 1929-12-19 | 1930-06-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1933-06-19 | 1933-12-19 | 1934-06-20 | $7700.00 | Window Closed / Lapsed |