Patent US1485744A successfully refreshed from Google Patents.
US1485744A
Expired / Lapsed
US
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Welding generator
Assignee: US Light and Heat Corp
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Filing: 1920-11-22
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Granted: 1924-03-04
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Expires: 1940-11-22
Abstract
No abstract record available.
Inventors
- 👤 William A Turbayne
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 19:36
CPC Classifications
H; H02; H02K; H02K23/00; H02K23/02; H02K23/10
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) | 1927-03-04 | 1927-09-03 | 1928-03-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1931-03-04 | 1931-09-03 | 1932-03-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1935-03-04 | 1935-09-03 | 1936-03-04 | $7700.00 | Window Closed / Lapsed |