US2645592A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pest control chemicals
Assignee: Stauffer Chemical Co
•
Filing: 1950-03-02
•
Granted: 1953-07-14
•
Expires: 1970-03-02
Abstract
No abstract record available.
Inventors
- 👤 Ramsey G Campbell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 21:28
CPC Classifications
A; A01; A01N; A01N41/00; A01N41/02; A01N41/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
6 words
N-ALKYLBENZYL-TRIMETHYL AMMONIUM NAPHTHENATE HAVING THE FORMULA
Claim 2
Dependent Claim
6 words
N-ALKYLBENZYL-TRIMETHYL AMMONIUM NAPHTHENATE HAVING THE FORMULA
References Cited (Backward Citations)
US2148928A
Cited
US2538513A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-07-13 | 1957-01-12 | 1957-07-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-07-13 | 1961-01-12 | 1961-07-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-07-13 | 1965-01-12 | 1965-07-14 | $7700.00 | Window Closed / Lapsed |