Patent US3210101A successfully refreshed from Google Patents.
US2464591A
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Method of bonding a tungsten member to a backing member
Assignee: Duracell Inc USA
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Filing: 1944-04-04
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Granted: 1949-03-15
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Expires: 1964-04-04
Abstract
No abstract record available.
Inventors
- 👤 Earl I Larsen
- 👤 Earl F Swazy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 04:11
CPC Classifications
B; B23; B23K; B23K1/00; Y; Y10; Y10S; Y10S428/00; Y10S428/922; Y10S428/9265; Y10S428/929; Y10S428/9335; Y10S428/939; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49117; Y10T29/49204; Y10T29/49208; Y10T29/4921; Y10T29/49211; Y10T29/49213; Y10T428/00; Y10T428/12; Y10T428/12493; Y10T428/12771; Y10T428/12806; Y10T428/12826; Y10T428/1284; Y10T428/12861; Y10T428/12944; Y10T74/00; Y10T74/21; Y10T74/2173; Y10T74/2183
Claims Analysis
Total Claims: 0
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US2060959A
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US2232176A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-03-14 | 1952-09-13 | 1953-03-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-03-14 | 1956-09-13 | 1957-03-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-03-14 | 1960-09-13 | 1961-03-15 | $7700.00 | Window Closed / Lapsed |