US3217035A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluorinated polyols
Assignee: 3M Co
•
Filing: 1961-09-07
•
Granted: 1965-11-09
•
Expires: 1981-09-07
Abstract
No abstract record available.
Inventors
- 👤 James D Lazerte
- 👤 Richard A Guenthner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 01:49
CPC Classifications
C; C08; C08G; C08G65/00; C08G65/002; C08G65/005; C08G65/007
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
6 words
A FLUORINATED POLYOL HAVING THE FORMULA
Claim 2
Dependent Claim
6 words
A FLUORINATED POLYOL HAVING THE FORMULA
References Cited (Backward Citations)
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Cited
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Cited
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Cited
US2989512A
Cited
US2809990A
Cited
US2803656A
Cited
US2915554A
Cited
US3044988A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-11-08 | 1969-05-10 | 1969-11-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-08 | 1973-05-10 | 1973-11-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-08 | 1977-05-10 | 1977-11-09 | $7700.00 | Window Closed / Lapsed |