US3227758A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Phenalkylamines
Assignee: Velsicol Chemical LLC
•
Filing: 1962-07-10
•
Granted: 1966-01-04
•
Expires: 1982-07-10
Abstract
No abstract record available.
Inventors
- 👤 Sidney B Richter
- 👤 David P Mayer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 15:44
CPC Classifications
C; C07; C07C; C07C211/00; C07C211/01; C07C211/26; C07C211/29
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
6 words
A COMPOUND OF THE GENERAL FORMULA
Claim 2
Dependent Claim
6 words
A COMPOUND OF THE GENERAL FORMULA
References Cited (Backward Citations)
US2862966A
Cited
US2764591A
Cited
US2784138A
Cited
US2962531A
Cited
US2981619A
Cited
US3070628A
Cited
US3113067A
Cited
US3072472A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-01-03 | 1969-07-05 | 1970-01-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-03 | 1973-07-05 | 1974-01-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-03 | 1977-07-05 | 1978-01-04 | $7700.00 | Window Closed / Lapsed |