US2561603A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Machine for cutting and contouring the ends of pipes
Assignee: Individual
•
Filing: 1947-10-06
•
Granted: 1951-07-24
•
Expires: 1967-10-06
Abstract
No abstract record available.
Inventors
- 👤 Irvin A Woerner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 18:51
CPC Classifications
B; B23; B23K; B23K7/00; B23K7/005; B23K7/006; Y; Y10; Y10T; Y10T82/00; Y10T82/14; Y10T82/141
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1879346A
Cited
US2295182A
Cited
US2295229A
Cited
US2379630A
Cited
US2383607A
Cited
US2460412A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-07-23 | 1955-01-22 | 1955-07-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-07-23 | 1959-01-22 | 1959-07-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-07-23 | 1963-01-22 | 1963-07-24 | $7700.00 | Window Closed / Lapsed |