US3033820A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High molecular weight resins
Assignee: Celanese Coatings Co
•
Filing: 1958-10-24
•
Granted: 1962-05-08
•
Expires: 1978-10-24
Abstract
No abstract record available.
Inventors
- 👤 Herbert P Price
- 👤 William J Belanger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 16:51
CPC Classifications
C; C07; C07D; C07D303/00; C07D303/02; C07D303/12; C07D303/18; C07D303/20; C07D303/24; C08; C08G; C08G59/00; C08G59/02; C08G59/04; C08G59/06; C08G59/063
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
26 words
THE METHOD OF PRODUCING HIGH MOLECULAR WEIGHT POLYMERIC PRODUCTS WHICH COMPRISES SUBJECTING MONOROHYDRIN ETHERS OF MONOHYDROXY-ALIPHATIC ETHERS OF A DIHYDRIC PHENOL HAVING THE FOLLOWING GENERAL FORMULA
Claim 2
Independent Claim
26 words
THE METHOD OF PRODUCING HIGH MOLECULAR WEIGHT POLYMERIC PRODUCTS WHICH COMPRISES SUBJECTING MONOROHYDRIN ETHERS OF MONOHYDROXY-ALIPHATIC ETHERS OF A DIHYDRIC PHENOL HAVING THE FOLLOWING GENERAL FORMULA
References Cited (Backward Citations)
US2538072A
Cited
US2581464A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-05-07 | 1965-11-06 | 1966-05-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-05-07 | 1969-11-06 | 1970-05-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-05-07 | 1973-11-06 | 1974-05-08 | $7700.00 | Window Closed / Lapsed |