US2013933A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Machine for inserting and removing boiler tubes
Assignee: Individual
•
Filing: 1933-12-26
•
Granted: 1935-09-10
•
Expires: 1953-12-26
Abstract
No abstract record available.
Inventors
- 👤 Wagner Georges
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 06:47
CPC Classifications
B; B23; B23P; B23P19/00; B23P19/02; Y; Y10; Y10T; Y10T29/00; Y10T29/53; Y10T29/53113
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) | 1938-09-09 | 1939-03-11 | 1939-09-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1942-09-09 | 1943-03-11 | 1943-09-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1946-09-09 | 1947-03-11 | 1947-09-10 | $7700.00 | Window Closed / Lapsed |