Patent US3437680A successfully refreshed from Google Patents.
US3437680A
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Trichloro-bromoalkyl isocyanates
Assignee: Pharmacia and Upjohn Co
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Filing: 1965-08-10
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Granted: 1969-04-08
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Expires: 1985-08-10
Abstract
No abstract record available.
Inventors
- 👤 William J Farrissey Jr
- 👤 Francesco P Recchia
- 👤 Adnan A R Sayigh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 21:09
CPC Classifications
C; C08; C08G; C08G18/00; C08G18/06; C08G18/70; C08G18/71; C08G18/712; C07; C07C; C07C265/00; C07C265/02; C07C265/04; C07C265/12; C07C265/14; C07C311/00; C07C311/50; C07C311/51; C08G18/28; C08G18/40; C08G18/48; C08G18/72; C08G18/74; C08G18/76; C08G18/7657; C08G18/7664; C08G18/77; C08G18/773; C08G18/80; C08G18/8003; C08G18/8006; C08G18/8038; C08K; C08K5/00; C08K5/16; C08K5/21; C08G2110/00; C08G2110/0025; C08G2110/0041; C08G2110/005
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 |