Patent US3464836A successfully refreshed from Google Patents.
US3464836A
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Ceramic filament,electrical apparatus made therewith and method of making same
Assignee: ANAMAG Inc A CORP OF DE
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Filing: 1964-11-02
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Granted: 1969-09-02
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Expires: 1984-11-02
Abstract
No abstract record available.
Inventors
- 👤 Wesley W Pendleton
- 👤 George W Ostrander
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 11:39
CPC Classifications
H; H01; H01B; H01B13/00; H01B13/06; H01B13/12; C; C03; C03C; C03C13/00; C03C13/006; H01B3/00; H01B3/02; H01B3/08; H01B3/082; H01B7/00; H01B7/02; H01B7/0241; Y; Y10; Y10S; Y10S428/00; Y10S428/90; Y10T; Y10T428/00; Y10T428/29; Y10T428/2913; Y10T428/2933; Y10T428/2936; Y10T428/294; Y10T428/296
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2920971A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-09-01 | 1973-03-03 | 1973-09-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-09-01 | 1977-03-03 | 1977-09-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-09-01 | 1981-03-03 | 1981-09-02 | $7700.00 | Window Closed / Lapsed |