US3376205A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of reviving silicate sealing solutions
Assignee: SAMUEL L COHN
•
Filing: 1964-07-15
•
Granted: 1968-04-02
•
Expires: 1984-07-15
Abstract
No abstract record available.
Inventors
- 👤 Charles C Cohn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 13:41
CPC Classifications
C; C04; C04B; C04B41/00; C04B41/009; C04B12/00; C04B12/04; C04B41/45; C04B41/50; C04B41/5076; C04B41/5089; C04B41/80; C04B41/81; C04B41/85; C25; C25D; C25D11/00; C25D11/02; C25D11/04; C25D11/18; C25D11/24; C25D11/246
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1846844A
Cited
US1946153A
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US1946149A
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GB397493A
Cited
US2161636A
Cited
GB522571A
Cited
US3012917A
Cited
US3016339A
Cited
US3181461A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-04-02 | 1971-10-02 | 1972-04-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-04-02 | 1975-10-02 | 1976-04-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-04-02 | 1979-10-02 | 1980-04-02 | $7700.00 | Window Closed / Lapsed |