Patent US3074955A successfully refreshed from Google Patents.
US3074955A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pyridylalkyl dicyandiamides and guanylureas
Assignee: US Vitamin and Pharmaceutical Corp
•
Filing: 1960-11-30
•
Granted: 1963-01-22
•
Expires: 1980-11-30
Abstract
No abstract record available.
Inventors
- 👤 Seymour L Shapiro
- 👤 Freedman Louis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 21:27
CPC Classifications
C; C07; C07D; C07D213/00; C07D213/02; C07D213/04; C07D213/24; C07D213/36; C07D213/40
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
2 words
THE COMPOUND
Claim 2
Dependent Claim
2 words
THE COMPOUND
Claim 3
Dependent Claim
2 words
THE COMPOUND
Claim 4
Dependent Claim
2 words
THE COMPOUND
References Cited (Backward Citations)
US2455896A
Cited
US2455894A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-01-21 | 1966-07-23 | 1967-01-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-01-21 | 1970-07-23 | 1971-01-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-01-21 | 1974-07-23 | 1975-01-22 | $7700.00 | Window Closed / Lapsed |