US2528873A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pipe chuck
Assignee: Individual
•
Filing: 1949-04-29
•
Granted: 1950-11-07
•
Expires: 1969-04-29
Abstract
No abstract record available.
Inventors
- 👤 James A Dorman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 05:15
CPC Classifications
B; B23; B23B; B23B31/00; B23B31/02; B23B31/10; B23B31/12; B23B31/1261; B23B31/14; B23B31/142; Y; Y10; Y10T; Y10T279/00; Y10T279/10; Y10T279/1074; Y10T279/1079; Y10T279/17; Y10T279/17213
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US868471A
Cited
US1187920A
Cited
US988302A
Cited
US1756773A
Cited
DE690501C
Cited
GB540609A
Cited
US2465923A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-11-06 | 1954-05-08 | 1954-11-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-11-06 | 1958-05-08 | 1958-11-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-11-06 | 1962-05-08 | 1962-11-07 | $7700.00 | Window Closed / Lapsed |