Patent US2701253A successfully refreshed from Google Patents.
US2701253A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Substituted dithiolanes
Assignee: —
•
Filing: —
•
Granted: 1955-02-01
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Expires: 1972-02-01
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 10:17
CPC Classifications
C; C07; C07D; C07D339/00; C07D339/02; C07D339/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
11 words
AS A NEW COMPOSITION OF MATTER, A COMPOUND HAVING THE FORMULA:
Claim 2
Dependent Claim
11 words
AS A NEW COMPOSITION OF MATTER, A COMPOUND HAVING 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) | 1958-01-31 | 1958-08-02 | 1959-02-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-01-31 | 1962-08-02 | 1963-02-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-01-31 | 1966-08-02 | 1967-02-01 | $7700.00 | Window Closed / Lapsed |