Patent US2680107A successfully refreshed from Google Patents.
US2680107A
Expired / Lapsed
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Organic derivatives of tetravalent tin and compositions containing the same
Assignee: ARGUS CHEMICAL LAB Inc
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Filing: 1952-05-20
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Granted: 1954-06-01
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Expires: 1972-05-20
Abstract
No abstract record available.
Inventors
- 👤 William E Leistner
- 👤 Arthur C Hecker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 12:08
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/56; C08K5/57; C08K5/58; C07; C07F; C07F7/00; C07F7/22; C07F7/2224
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
10 words
AS A NEW COMPOUND, A PRODUCT CORRESPONDING TO THE FORMULA
Claim 2
Dependent Claim
10 words
AS A NEW COMPOUND, A PRODUCT CORRESPONDING TO 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) | 1957-05-31 | 1957-11-30 | 1958-06-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-05-31 | 1961-11-30 | 1962-06-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-05-31 | 1965-11-30 | 1966-06-01 | $7700.00 | Window Closed / Lapsed |