US2120204A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fumigant carrier combination
Assignee: Wyeth Holdings LLC
•
Filing: 1936-04-27
•
Granted: 1938-06-07
•
Expires: 1956-04-27
Abstract
No abstract record available.
Inventors
- 👤 Harry J Langhorst
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 08:31
CPC Classifications
A; A61; A61L; A61L9/00; A61L9/015; A61L9/02; A61L9/03; Y; Y10; Y10S; Y10S206/00; Y10S206/82; Y10S428/00; Y10S428/907; Y10T; Y10T428/00; Y10T428/21
Claims Analysis
Total Claims: 0
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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) | 1941-06-06 | 1941-12-06 | 1942-06-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1945-06-06 | 1945-12-06 | 1946-06-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1949-06-06 | 1949-12-06 | 1950-06-07 | $7700.00 | Window Closed / Lapsed |