Patent US4933872A successfully refreshed from Google Patents.
Patent US1898933A successfully refreshed from Google Patents.
US1898933A
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Wim-ding rod
Assignee: Oxweld Acetylene Co
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Filing: 1931-03-14
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Granted: 1933-02-21
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Expires: 1951-03-14
Abstract
No abstract record available.
Inventors
- 👤 Howard William R Biers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 17:46
CPC Classifications
B; B23; B23K; B23K35/00; B23K35/22; B23K35/24; B23K35/30; B23K35/3053; Y; Y10; Y10T; Y10T428/00; Y10T428/12; Y10T428/12014; Y10T428/12028; Y10T428/12063; Y10T428/12104; Y10T428/12111; Y10T428/12125; Y10T428/12139; Y10T428/12493; Y10T428/12674; Y10T428/12771; Y10T428/12806; Y10T428/29; Y10T428/2913; Y10T428/2918; Y10T428/292; Y10T428/2933; Y10T428/294; Y10T428/2951; Y10T428/2955
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) | 1936-02-21 | 1936-08-22 | 1937-02-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1940-02-21 | 1940-08-22 | 1941-02-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1944-02-21 | 1944-08-22 | 1945-02-21 | $7700.00 | Window Closed / Lapsed |