Patent US3729731A successfully refreshed from Google Patents.
Patent US2827457A successfully refreshed from Google Patents.
US2827457A
Expired / Lapsed
US
⏱️ 0.0 years remaining
department of commerce
Assignee: —
•
Filing: —
•
Granted: 1958-03-18
•
Expires: 1975-03-18
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 17:28
CPC Classifications
C; C07; C07D; C07D285/00; C07D285/01; C07D285/02; C07D285/04; C07D285/06; C07D285/08; C07D285/12; C07D285/125; C07D417/00; C07D417/02; C07D417/04; C07D417/12; C07D513/00; C07D513/02; C07D513/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
15 words
A COMPOUND SELECTED FROM THE CLASS CONSISTING OF THE 1:2:3-THIADIAZOLE COMPOUND REPRESENTED BY THE FORMULA:
Claim 2
Dependent Claim
15 words
A COMPOUND SELECTED FROM THE CLASS CONSISTING OF THE 1:2:3-THIADIAZOLE COMPOUND REPRESENTED BY THE FORMULA:
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-03-17 | 1961-09-16 | 1962-03-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-03-17 | 1965-09-16 | 1966-03-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-03-17 | 1969-09-16 | 1970-03-18 | $7700.00 | Window Closed / Lapsed |