US2556820A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aqueous dispersions of dichlorodiphenyl-trichloroethane
Assignee: GAF Chemicals Corp
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Filing: 1945-09-21
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Granted: 1951-06-12
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Expires: 1965-09-21
Abstract
No abstract record available.
Inventors
- 👤 Aubrey H Nease
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 21:49
CPC Classifications
A; A01; A01N; A01N25/00; A01N25/02; A01N25/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-06-11 | 1954-12-11 | 1955-06-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-06-11 | 1958-12-11 | 1959-06-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-06-11 | 1962-12-11 | 1963-06-12 | $7700.00 | Window Closed / Lapsed |