US3527722A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fire retardant additive
Assignee: Hooker Chemical Corp
•
Filing: 1967-10-30
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Granted: 1970-09-08
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Expires: 1987-10-30
Abstract
No abstract record available.
Inventors
- 👤 Richard D Carlson
- 👤 James J Hodan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 22:14
CPC Classifications
C; C09; C09D; C09D155/00; C09D155/04; C08; C08G; C08G63/00; C08G63/68; C08G63/682; C08G63/6824; C08G63/6828; C08K; C08K5/00; C08K5/02; C08L; C08L67/00; C08L67/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2779700A
Cited
US2909501A
Cited
US2863848A
Cited
US3098058A
Cited
US3350334A
Cited
US3347807A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-09-07 | 1974-03-09 | 1974-09-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-09-07 | 1978-03-09 | 1978-09-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-09-07 | 1982-03-09 | 1982-09-08 | $7700.00 | Window Closed / Lapsed |