US3274165A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for preparing linear polyarylene sulfide
Assignee: Dow Chemical Co
•
Filing: 1965-05-10
•
Granted: 1966-09-20
•
Expires: 1985-05-10
Abstract
No abstract record available.
Inventors
- 👤 Robert W Lenz
- 👤 Carl E Handlovits
- 👤 William K Carrington
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 17:26
CPC Classifications
C; C08; C08G; C08G75/00; C08G75/02; C08G75/0204; C08G75/025; C08G75/0209; C08G75/0213; C08G75/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
16 words
A PROCESS WHICH COMPRISES REACTING BY HEATING A METAL SALT OF A HALOTHIOPHENOL HAVING THE FORMULA
Claim 2
Dependent Claim
16 words
A PROCESS WHICH COMPRISES REACTING BY HEATING A METAL SALT OF A HALOTHIOPHENOL 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) | 1969-09-19 | 1970-03-21 | 1970-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-19 | 1974-03-21 | 1974-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-19 | 1978-03-21 | 1978-09-20 | $7700.00 | Window Closed / Lapsed |