US2133972A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Household spray
Assignee: Dow Chemical Co
•
Filing: 1937-08-10
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Granted: 1938-10-25
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Expires: 1957-08-10
Abstract
No abstract record available.
Inventors
- 👤 Gerald H Coleman
- 👤 John W Zemba
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 23:23
CPC Classifications
A; A01; A01N; A01N53/00; A01N25/00; A01N25/02; A01N25/04; A01N25/06; A01N31/00; A01N31/08; A01N31/14; A01N43/00; A01N43/90
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) | 1941-10-24 | 1942-04-25 | 1942-10-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1945-10-24 | 1946-04-25 | 1946-10-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1949-10-24 | 1950-04-25 | 1950-10-25 | $7700.00 | Window Closed / Lapsed |