Patent US4872330A successfully refreshed from Google Patents.
US2435480A
Expired / Lapsed
US
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Expanible workpiece holder
Assignee: Individual
•
Filing: 1945-03-15
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Granted: 1948-02-03
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Expires: 1965-03-15
Abstract
No abstract record available.
Inventors
- 👤 Tuttle John
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 17:03
CPC Classifications
B; B23; B23B; B23B31/00; B23B31/40; B23B31/4006; B23B31/4033; Y; Y10; Y10T; Y10T279/00; Y10T279/10; Y10T279/1004; Y10T279/1008; Y10T279/1037; Y10T279/1041; Y10T279/1045; Y10T279/34; Y10T279/3406; Y10T279/3418
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-02-02 | 1951-08-04 | 1952-02-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-02-02 | 1955-08-04 | 1956-02-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-02-02 | 1959-08-04 | 1960-02-03 | $7700.00 | Window Closed / Lapsed |