US3402999A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process and apparatus for the preparation of ammonia and chlorine from ammonium chloride
Assignee: Produits Chimiques Pechiney Saint Gobain
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Filing: 1965-03-02
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Granted: 1968-09-24
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Expires: 1985-03-02
Abstract
No abstract record available.
Inventors
- 👤 Botton Roger
- 👤 Delcoigne Adrien
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 13:42
CPC Classifications
C; C01; C01C; C01C1/00; C01C1/02; C01C1/026; C01B; C01B7/00; C01B7/01; C01B7/03; C01B7/05
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) | 1971-09-24 | 1972-03-25 | 1972-09-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-09-24 | 1976-03-25 | 1976-09-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-09-24 | 1980-03-25 | 1980-09-24 | $7700.00 | Window Closed / Lapsed |