US1429808A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Drill-steel retainer
Assignee: Ingersoll Rand Co
•
Filing: 1921-06-02
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Granted: 1922-09-19
•
Expires: 1941-06-02
Abstract
No abstract record available.
Inventors
- 👤 Grover G Tuttle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 07:38
CPC Classifications
B; B25; B25D; B25D17/00; B25D17/08; B25D17/082; Y; Y10; Y10T; Y10T279/00; Y10T279/17; Y10T279/17042; Y10T279/17051
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) | 1925-09-18 | 1926-03-20 | 1926-09-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1929-09-18 | 1930-03-20 | 1930-09-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1933-09-18 | 1934-03-20 | 1934-09-19 | $7700.00 | Window Closed / Lapsed |