US3270022A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Quaternary ammonium salts of pyrrole
Assignee: Millmaster Onyx Corp
•
Filing: 1964-06-29
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Granted: 1966-08-30
•
Expires: 1984-06-29
Abstract
No abstract record available.
Inventors
- 👤 Reginald L Wakeman
- 👤 Shay Edward Griffin
- 👤 Steinberger Samuel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 23:21
CPC Classifications
C; C07; C07D; C07D207/00; C07D207/02; C07D207/30; C07D207/32; C07D207/323; A; A23; A23B; A23B11/00; A23B11/60; A23B11/65; B; B65; B65D; B65D81/00; B65D81/24; B65D81/28; C10; C10L; C10L1/00; C10L1/10; C10L1/14; C10L1/22; C10L1/232; Y; Y10; Y10S; Y10S424/00; Y10S424/04; Y10S507/00; Y10S507/92
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
7 words
A QUATERNARY AMMONIUM COMPOUND HAVING THE STRUCTURE:
Claim 2
Dependent Claim
7 words
A QUATERNARY AMMONIUM COMPOUND HAVING THE STRUCTURE:
Claim 3
Dependent Claim
5 words
ALKUL ISOQUINOLINIUM SALT OF PYROLLE.
Claim 4
Dependent Claim
5 words
ALKUL ISOQUINOLINIUM SALT OF PYROLLE.
References Cited (Backward Citations)
US2388475A
Cited
US2492414A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-08-29 | 1970-02-28 | 1970-08-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-29 | 1974-02-28 | 1974-08-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-29 | 1978-02-28 | 1978-08-30 | $7700.00 | Window Closed / Lapsed |