US3399076A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of wetting silicon nitride
Assignee: Duracell Inc USA
•
Filing: 1965-04-08
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Granted: 1968-08-27
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Expires: 1985-04-08
Abstract
No abstract record available.
Inventors
- 👤 Michael J Ginsberg
- 👤 Richard H Krock
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 23:54
CPC Classifications
C; C04; C04B; C04B41/00; C04B41/009; C04B37/00; C04B37/02; C04B37/023; C04B37/026; C04B41/45; C04B41/50; C04B41/51; C04B41/5144; C04B41/80; C04B41/81; C04B41/85; C04B41/88; C22; C22C; C22C19/00; C04B2235/00; C04B2235/65; C04B2235/658; C04B2237/00; C04B2237/02; C04B2237/12; C04B2237/123; C04B2237/126; C04B2237/127; C04B2237/30; C04B2237/32; C04B2237/36; C04B2237/40; C04B2237/50; C04B2237/72
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-08-27 | 1972-02-26 | 1972-08-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-08-27 | 1976-02-26 | 1976-08-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-08-27 | 1980-02-26 | 1980-08-27 | $7700.00 | Window Closed / Lapsed |