US1843549A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of securing tips to tool holders
Assignee: FIRTH STERLING STEEL CO
•
Filing: 1929-08-16
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Granted: 1932-02-02
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Expires: 1949-08-16
Abstract
No abstract record available.
Inventors
- 👤 Firth Lewis Gerald
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 16:32
CPC Classifications
B; B23; B23K; B23K31/00; B23K31/02; B23K31/025; B23B; B23B27/00; B23B27/14; B23B27/18; B23B2205/00; B23B2205/02; Y; Y10; Y10S; Y10S428/00; Y10S428/922; Y10S428/9265; Y10S428/932; Y10S76/00; Y10S76/05; Y10S76/12; Y10T; Y10T428/00; Y10T428/12; Y10T428/12014; Y10T428/12028; Y10T428/12063; Y10T428/12139; Y10T428/12486
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) | 1935-02-01 | 1935-08-03 | 1936-02-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1939-02-01 | 1939-08-03 | 1940-02-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1943-02-01 | 1943-08-03 | 1944-02-02 | $7700.00 | Window Closed / Lapsed |