Patent US3174997A successfully refreshed from Google Patents.
US3174997A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Phenoxypropylguanidine compounds
Assignee: Parke Davis and Co LLC
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Filing: 1961-01-06
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Granted: 1965-03-23
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Expires: 1981-01-06
Abstract
No abstract record available.
Inventors
- 👤 Campbell Alfred
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 23:25
CPC Classifications
C; C07; C07C; C07C51/00; C07C51/42; C07C51/487
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
13 words
A MEMBER OF THE CLASS CONSISTING OF 3-PHENOXYPROPYLGUANIDINE AND ITS NON-TOXIC ACID-ADDITIONAL SALTS.
Claim 2
Dependent Claim
13 words
A MEMBER OF THE CLASS CONSISTING OF 3-PHENOXYPROPYLGUANIDINE AND ITS NON-TOXIC ACID-ADDITIONAL SALTS.
References Cited (Backward Citations)
US1805889A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-03-22 | 1968-09-21 | 1969-03-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-03-22 | 1972-09-21 | 1973-03-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-03-22 | 1976-09-21 | 1977-03-23 | $7700.00 | Window Closed / Lapsed |