US3218351A
Expired / Lapsed
US
⏱️ 0.0 years remaining
N-naphthenyl polyamine salts
Assignee: Sunoco Inc
•
Filing: 1960-02-01
•
Granted: 1965-11-16
•
Expires: 1980-02-01
Abstract
No abstract record available.
Inventors
- 👤 Samuel E Jolly
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 23:12
CPC Classifications
C; C23; C23F; C23F11/00; C23F11/08; C23F11/10; C23F11/14; C23F11/141; C23F11/143; Y; Y10; Y10S; Y10S507/00; Y10S507/939
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
23 words
AS NEW COMPOSITIONS OF MATTER, SALTS OF CARBOXYLIC ACIDS HAVING 2 TO 30 CARBONA TOMS WITH A NAPHTHENYL POLYAMINE COMPOSITION HAVING THE FORMULA
Claim 2
Dependent Claim
23 words
AS NEW COMPOSITIONS OF MATTER, SALTS OF CARBOXYLIC ACIDS HAVING 2 TO 30 CARBONA TOMS WITH A NAPHTHENYL POLYAMINE COMPOSITION HAVING THE FORMULA
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-11-15 | 1969-05-17 | 1969-11-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-15 | 1973-05-17 | 1973-11-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-15 | 1977-05-17 | 1977-11-16 | $7700.00 | Window Closed / Lapsed |