Patent US2271500A successfully refreshed from Google Patents.
US2271500A
Expired / Lapsed
US
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Die holder
Assignee: Pittsburgh Stencil & Tool Co
•
Filing: 1939-07-26
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Granted: 1942-01-27
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Expires: 1959-07-26
Abstract
No abstract record available.
Inventors
- 👤 Harry C Rickenbach
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 19:17
CPC Classifications
B; B44; B44B; B44B11/00; B44B11/04; B44B5/00; B44B5/02; B44B5/026; Y; Y10; Y10S; Y10S24/00; Y10S24/30; Y10S24/31; Y10S24/35; Y10T; Y10T279/00; Y10T279/17; Y10T279/17923
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) | 1945-01-26 | 1945-07-28 | 1946-01-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1949-01-26 | 1949-07-28 | 1950-01-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1953-01-26 | 1953-07-28 | 1954-01-27 | $7700.00 | Window Closed / Lapsed |