US2713593A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluorocarbon acids and derivatives
Assignee: 3M Co
•
Filing: 1953-12-21
•
Granted: 1955-07-19
•
Expires: 1973-12-21
Abstract
No abstract record available.
Inventors
- 👤 Thomas J Brice
- 👤 Wilbur H Pearlson
- 👤 Harold M Scholberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 17:10
CPC Classifications
C; C07; C07C; C07C59/00; C07C59/125; C07C59/135
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
18 words
THE NEW AND USEFUL FLUOROCARBON COMPOUNDS OF THE CLASS CONSISTING OF THE NORMAL PERFLUORO(ALKOXYPROPIONIC) ACIDS HAVING THE FORMULA:
Claim 2
Dependent Claim
18 words
THE NEW AND USEFUL FLUOROCARBON COMPOUNDS OF THE CLASS CONSISTING OF THE NORMAL PERFLUORO(ALKOXYPROPIONIC) ACIDS HAVING THE FORMULA:
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-07-18 | 1959-01-17 | 1959-07-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-07-18 | 1963-01-17 | 1963-07-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-07-18 | 1967-01-17 | 1967-07-19 | $7700.00 | Window Closed / Lapsed |