US1630835A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and means of utilizing expanding air
Assignee: Individual
•
Filing: 1926-05-03
•
Granted: 1927-05-31
•
Expires: 1946-05-03
Abstract
No abstract record available.
Inventors
- 👤 John W Doyle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:19
CPC Classifications
B; B23; B23Q; B23Q11/00; B23Q11/10; Y; Y10; Y10S; Y10S261/00; Y10S261/22; Y10S29/00; Y10S29/089; Y10S29/09; Y10S408/00; Y10S408/702; Y10S82/00; Y10S82/90; Y10T; Y10T408/00; Y10T408/03; Y10T408/44; Y10T408/46; Y10T83/00; Y10T83/283
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) | 1930-05-30 | 1930-11-29 | 1931-05-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1934-05-30 | 1934-11-29 | 1935-05-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1938-05-30 | 1938-11-29 | 1939-05-31 | $7700.00 | Window Closed / Lapsed |