US3346571A
Expired / Lapsed
US
⏱️ 0.0 years remaining
2-(omega-substituted vinylene)-3, 3-disubstituted-3h-indoles
Assignee: Honeywell International Inc
•
Filing: 1963-06-05
•
Granted: 1967-10-10
•
Expires: 1983-06-05
Abstract
No abstract record available.
Inventors
- 👤 Sydney M Spatz
- 👤 Russell I Steiner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 06:49
CPC Classifications
C; C07; C07D; C07D209/00; C07D209/02; C07D209/04; C07D209/08; B; B41; B41M; B41M5/00; B41M5/124; B41M5/132; B41M5/136; C07D209/10; C07D209/12; C07D209/14; C09; C09B; C09B23/00; C09B23/10; C09B23/105; C09B23/107; C09B23/14; C09B23/145
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
8 words
2-(OMEGA-SUBSTITUTED VINYLENE) 3,3-DISUBSTITUTED 3HINDOLE CORRESPONDING TO THE FORMULA:
Claim 2
Dependent Claim
8 words
2-(OMEGA-SUBSTITUTED VINYLENE) 3,3-DISUBSTITUTED 3HINDOLE CORRESPONDING TO THE FORMULA:
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-10-09 | 1971-04-10 | 1971-10-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-10-09 | 1975-04-10 | 1975-10-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-10-09 | 1979-04-10 | 1979-10-10 | $7700.00 | Window Closed / Lapsed |