US3014895A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Diaminodiphenylsulfone glycidyl resins
Assignee: Merck and Co Inc
•
Filing: 1958-03-19
•
Granted: 1961-12-26
•
Expires: 1978-03-19
Abstract
No abstract record available.
Inventors
- 👤 Harold C Reynolds
- 👤 Robert C O'neill
- 👤 John D Garber
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 01:49
CPC Classifications
C; C08; C08G; C08G59/00; C08G59/18; C08G59/20; C08G59/22; C08G59/30; C08G59/302; C08G59/02; C08G59/10; C08G65/00; C08G65/02; C08G65/04; C08G65/22; C08G73/00; C08G73/02; C08G73/0246; C08G73/0253; H; H01; H01B; H01B3/00; H01B3/18; H01B3/30; H01B3/40
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
9 words
THE PROCESS FOR MAKING A COMPOUND OF THE FORMULA
Claim 2
Dependent Claim
9 words
THE PROCESS FOR MAKING A COMPOUND OF THE FORMULA
References Cited (Backward Citations)
US1977251A
Cited
US1977253A
Cited
US2131120A
Cited
US2765322A
Cited
US2884406A
Cited
US2897179A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-12-25 | 1965-06-26 | 1965-12-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-12-25 | 1969-06-26 | 1969-12-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-12-25 | 1973-06-26 | 1973-12-26 | $7700.00 | Window Closed / Lapsed |