Patent US3107261A successfully refreshed from Google Patents.
US3107261A
Expired / Lapsed
US
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Process for the production of phenyl cyanates and phenyl cyanates
Assignee: Bayer AG
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Filing: 1959-11-18
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Granted: 1963-10-15
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Expires: 1979-11-18
Abstract
No abstract record available.
Inventors
- 👤 Gerber Hanns
- 👤 Stroh Rudolf
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 10:13
CPC Classifications
C; C07; C07C; C07C261/00; C07C261/02; C08; C08G; C08G14/00; C08G14/02; C08G14/04; C08G14/06; C08K; C08K5/00; C08K5/04; C08K5/13; C08L; C08L79/00; C08L79/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
19 words
A CYANATE OF A STERICALLY HINDERED PHENOL WHICH IS SELECTED FROM THE GROUP CONSISTING OF COMPOUNDS OF THE FORMULAE
Claim 2
Dependent Claim
19 words
A CYANATE OF A STERICALLY HINDERED PHENOL WHICH IS SELECTED FROM THE GROUP CONSISTING OF COMPOUNDS OF THE FORMULAE
References Cited (Backward Citations)
US2903487A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-10-14 | 1967-04-15 | 1967-10-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-10-14 | 1971-04-15 | 1971-10-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-10-14 | 1975-04-15 | 1975-10-15 | $7700.00 | Window Closed / Lapsed |