Patent US3437573A successfully refreshed from Google Patents.
US3437573A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of alkyl monochlorides
Assignee: Gulf Research and Development Co
•
Filing: 1965-09-01
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Granted: 1969-04-08
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Expires: 1985-09-01
Abstract
No abstract record available.
Inventors
- 👤 Daniel J Hurley
- 👤 Alfred N Kresge
- 👤 Robert W Rosenthal
- 👤 Roger C Williamson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 06:25
CPC Classifications
B; B01; B01J; B01J19/00; B01J19/08; B01J19/12; B01J19/122; C; C07; C07C; C07C17/00; C07C17/093; C07C17/10
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) | 1972-04-07 | 1972-10-07 | 1973-04-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-04-07 | 1976-10-07 | 1977-04-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-04-07 | 1980-10-07 | 1981-04-08 | $7700.00 | Window Closed / Lapsed |