US3243425A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Novel sulfur-containing compounds
Assignee: Purdue Research Foundation
•
Filing: 1962-10-29
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Granted: 1966-03-29
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Expires: 1982-10-29
Abstract
No abstract record available.
Inventors
- 👤 Roy L Whistler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 22:57
CPC Classifications
C; C07; C07H; C07H9/00; C07H9/02; C07H9/04; C07H15/00; C07H15/02; C07H15/04; C07H15/18; C07H15/20; C07H15/203; C07H5/00; C07H5/08; C07H5/10; C08; C08F; C08F2/00; C08F2/38; C08G; C08G18/00; C08G18/06; C08G18/28; C08G18/30; C08G18/38; C08G18/3855; C08G18/3874
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
5 words
A THIASUGAR OF THE FORMUAL
Claim 2
Dependent Claim
5 words
A THIASUGAR OF THE FORMUAL
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) | 1969-03-28 | 1969-09-27 | 1970-03-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-03-28 | 1973-09-27 | 1974-03-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-03-28 | 1977-09-27 | 1978-03-29 | $7700.00 | Window Closed / Lapsed |