Patent US2684973A successfully refreshed from Google Patents.
US2684973A
Expired / Lapsed
US
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Stannanediol derivatives
Assignee: Advance Solvents and Chemical Corp
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Filing: 1952-10-08
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Granted: 1954-07-27
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Expires: 1972-10-08
Abstract
No abstract record available.
Inventors
- 👤 Gerry P Mack
- 👤 Savarese Ferdinand Bernard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 20:53
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/56; C08K5/57; C07; C07F; C07F7/00; C07F7/22; C07F7/2224
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
17 words
AS A NEW COMPOSITION OF MATTER, THE ETHER ESTER OF A MONOMERIC HYDROCARBON-SUBSTITUTED STANNANEDIOL OF THE FORMULA
Claim 2
Dependent Claim
17 words
AS A NEW COMPOSITION OF MATTER, THE ETHER ESTER OF A MONOMERIC HYDROCARBON-SUBSTITUTED STANNANEDIOL OF THE FORMULA
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-07-26 | 1958-01-25 | 1958-07-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-07-26 | 1962-01-25 | 1962-07-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-07-26 | 1966-01-25 | 1966-07-27 | $7700.00 | Window Closed / Lapsed |