US2901501A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Propanediol bis
Assignee: Merck Frosst Canada and Co
•
Filing: 1958-02-03
•
Granted: 1959-08-25
•
Expires: 1978-02-03
Abstract
No abstract record available.
Inventors
- 👤 Wasson Burton Kendall
- 👤 Parker John Mulvin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 15:19
CPC Classifications
C; C07; C07C; C07C333/00; C07C333/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
7 words
A SUBSTITUTED 1,3-PROPANEDIOL OF THE GENERAL FORMULA:
Claim 2
Dependent Claim
7 words
A SUBSTITUTED 1,3-PROPANEDIOL OF THE GENERAL 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) | 1962-08-24 | 1963-02-23 | 1963-08-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-08-24 | 1967-02-23 | 1967-08-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-08-24 | 1971-02-23 | 1971-08-25 | $7700.00 | Window Closed / Lapsed |