US3057928A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bis(2-hydroxy-meta-alkyl-phenol) alkanes
Assignee: Pennwalt Corp
•
Filing: 1959-10-30
•
Granted: 1962-10-09
•
Expires: 1979-10-30
Abstract
No abstract record available.
Inventors
- 👤 Koblitz Francis Frederick
- 👤 Morton Paul Daniel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 09:43
CPC Classifications
C; C07; C07C; C07C205/00; C07C205/13; C07C205/20; C07C205/21; C07C205/22; C07C37/00; C07C37/11; C07C37/115; C07C37/20; C07C39/00; C07C39/12; C07C39/15; C07C39/205; C07C39/21; C08; C08G; C08G59/00; C08G59/02; C08G59/04; C08G59/06; C08G59/08; C08G8/00; C08G8/04; C08G8/08; Y; Y02; Y02P; Y02P20/00; Y02P20/50; Y02P20/582
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
4 words
BIS-(2-HYDROXYPHENYL)ALKANES OF THE FORMULA:
Claim 2
Dependent Claim
4 words
BIS-(2-HYDROXYPHENYL)ALKANES OF THE FORMULA:
References Cited (Backward Citations)
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Cited
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Cited
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Cited
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Cited
US2932671A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-10-08 | 1966-04-09 | 1966-10-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-10-08 | 1970-04-09 | 1970-10-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-10-08 | 1974-04-09 | 1974-10-09 | $7700.00 | Window Closed / Lapsed |