Patent US2009787A successfully refreshed from Google Patents.
US2009787A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Arc welding apparatus
Assignee: Individual
•
Filing: 1933-11-24
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Granted: 1935-07-30
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Expires: 1953-11-24
Abstract
No abstract record available.
Inventors
- 👤 Albert B Rypinski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 12:03
CPC Classifications
B; B23; B23K; B23K9/00; B23K9/06; B23K9/073; B23K9/0732
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) | 1938-07-29 | 1939-01-28 | 1939-07-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1942-07-29 | 1943-01-28 | 1943-07-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1946-07-29 | 1947-01-28 | 1947-07-30 | $7700.00 | Window Closed / Lapsed |