Patent US2914529A successfully refreshed from Google Patents.
US2914529A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mono aminoethers of triphenyl ethylenes
Assignee: WM S MERRELL CO
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Filing: 1957-09-05
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Granted: 1959-11-24
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Expires: 1977-09-05
Abstract
No abstract record available.
Inventors
- 👤 Robert E Allen
- 👤 Frank P Palopoli
- 👤 Edward L Schumann
- 👤 Jr Marcus G Van Campen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 15:28
CPC Classifications
C; C07; C07D; C07D295/00; C07D295/04; C07D295/08; C07D295/084; C07D295/088; C07C; C07C33/00; C07C33/02; C07C33/025
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
4 words
COMPOUNDS OF THE FORMULA
Claim 2
Dependent Claim
4 words
COMPOUNDS OF THE FORMULA
References Cited (Backward Citations)
US2703324A
Cited
US2877269A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-11-23 | 1963-05-25 | 1963-11-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-11-23 | 1967-05-25 | 1967-11-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-11-23 | 1971-05-25 | 1971-11-24 | $7700.00 | Window Closed / Lapsed |