US2837679A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Glass sealed centerwire structure
Assignee: Motors Liquidation Co
•
Filing: 1952-08-22
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Granted: 1958-06-03
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Expires: 1972-08-22
Abstract
No abstract record available.
Inventors
- 👤 Schwartzwalder Karl
- 👤 Robert W Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 14:35
CPC Classifications
H; H01; H01T; H01T13/00; H01T13/20; H01T13/34; C; C04; C04B; C04B35/00; C04B35/622; C04B35/64; C04B35/645; C04B35/6455; C04B37/00; C04B37/02; C04B37/023; C04B37/025; C04B37/026; C04B2235/00; C04B2235/60; C04B2235/604; C04B2235/65; C04B2235/656; C04B2235/6567; C04B2237/00; C04B2237/02; C04B2237/10; C04B2237/12; C04B2237/122; C04B2237/123; C04B2237/124; C04B2237/125; C04B2237/126; C04B2237/16; C04B2237/30; C04B2237/32; C04B2237/34; C04B2237/343; C04B2237/40; C04B2237/408; C04B2237/50; C04B2237/62; C04B2237/64; C04B2237/70; C04B2237/708; C04B2237/72; C04B2237/76; C04B2237/765; C04B2237/84
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2371211A
Cited
US2459282A
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US2400917A
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US2436644A
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US2453048A
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US2449403A
Cited
US2497158A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-06-02 | 1961-12-02 | 1962-06-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-06-02 | 1965-12-02 | 1966-06-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-06-02 | 1969-12-02 | 1970-06-03 | $7700.00 | Window Closed / Lapsed |