US2538890A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tube cutter
Assignee: Atlantic Richfield Co
•
Filing: 1945-05-23
•
Granted: 1951-01-23
•
Expires: 1965-05-23
Abstract
No abstract record available.
Inventors
- 👤 Charles H Woodcock
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 07:53
CPC Classifications
B; B23; B23D; B23D21/00; B23D21/14; B23D21/145; Y; Y10; Y10S; Y10S411/00; Y10S411/924; Y10S411/948; Y10T; Y10T408/00; Y10T408/83; Y10T408/85; Y10T408/854; Y10T408/855; Y10T82/00; Y10T82/12; Y10T82/125; Y10T82/128
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US996310A
Cited
US1499429A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-01-22 | 1954-07-24 | 1955-01-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-01-22 | 1958-07-24 | 1959-01-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-01-22 | 1962-07-24 | 1963-01-23 | $7700.00 | Window Closed / Lapsed |