Patent US904540A successfully refreshed from Google Patents.
US904540A
Expired / Lapsed
US
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Process of electric welding.
Assignee: STANDARD PULLEY Manufacturing Co
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Filing: 1905-03-24
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Granted: 1908-11-24
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Expires: 1925-03-24
Abstract
No abstract record available.
Inventors
- 👤 Laurence S Lachman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 23:05
CPC Classifications
B; B23; B23K; B23K11/00; B23K11/14; Y; Y10; Y10S; Y10S220/00; Y10S220/29; Y10S76/00; Y10S76/05; Y10T; Y10T29/00; Y10T29/49; Y10T29/49453; Y10T29/49455; Y10T29/49456
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) | 1911-11-24 | 1912-05-25 | 1912-11-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1915-11-24 | 1916-05-25 | 1916-11-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1919-11-24 | 1920-05-25 | 1920-11-24 | $7700.00 | Window Closed / Lapsed |