US3549654A
Expired / Lapsed
US
⏱️ 0.0 years remaining
1,1'-alkylene-bis(3,3-dichloro-2-pyrrolidinones)
Assignee: STWB Inc
•
Filing: 1967-10-09
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Granted: 1970-12-22
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Expires: 1987-10-09
Abstract
No abstract record available.
Inventors
- 👤 Joseph C Collins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 19:12
CPC Classifications
C; C07; C07D; C07D207/00; C07D207/02; C07D207/18; C07D207/22; C07D207/24; C07D207/26; C07D207/263; C07D207/27; C07D207/273; C07D209/00; C07D209/02; C07D209/04; C07D209/10; C07D209/14; C07D209/16; C07D211/00; C07D211/04; C07D211/68; C07D211/72; C07D211/74; C07D211/76; C07D213/00; C07D213/02; C07D213/04; C07D213/60; C07D213/72; C07D213/75; C07D277/00; C07D277/60; C07D277/62; C07D277/68; C07D277/82; C07C; C07C2603/00; C07C2603/02; C07C2603/04; C07C2603/06; C07C2603/10; C07C2603/12; C07C2603/18
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) | 1973-12-21 | 1974-06-22 | 1974-12-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-12-21 | 1978-06-22 | 1978-12-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-12-21 | 1982-06-22 | 1982-12-22 | $7700.00 | Window Closed / Lapsed |