US3514484A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for the decomposition of urea synthesis effluent
Assignee: FERTILIZER INDUSTRIES Inc
•
Filing: 1968-08-29
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Granted: 1970-05-26
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Expires: 1988-08-29
Abstract
No abstract record available.
Inventors
- 👤 Theodore O Wentworth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 18:19
CPC Classifications
C; C07; C07C; C07C273/00; C07C273/02; C07C273/04; B; B01; B01J; B01J19/00; B01J19/24; B01J19/2415; B01J19/2425; B01J2219/00; B01J2219/00049; B01J2219/00051; B01J2219/00074; B01J2219/00087; B01J2219/00094; Y; Y02; Y02P; Y02P20/00; Y02P20/141
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2848493A
Cited
US2933526A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-05-25 | 1973-11-24 | 1974-05-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-05-25 | 1977-11-24 | 1978-05-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-05-25 | 1981-11-24 | 1982-05-26 | $7700.00 | Window Closed / Lapsed |