Patent DE1925348A1 successfully refreshed from Google Patents.
Patent US2801258A successfully refreshed from Google Patents.
US2801258A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Organo tin compounds and compositions containing same
Assignee: Primerica Inc
•
Filing: 1951-07-07
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Granted: 1957-07-30
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Expires: 1971-07-07
Abstract
No abstract record available.
Inventors
- 👤 Ernest W Johnson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 20:44
CPC Classifications
C; C07; C07F; C07F7/00; C07F7/22; C07F7/226; C08; C08K; C08K5/00; C08K5/56; C08K5/57; C08K5/58
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
3 words
DIBUTYLTIN DI(2-BENZOTHIAZYL) MERCAPTIDE.
Claim 2
Dependent Claim
3 words
DIBUTYLTIN DI(2-BENZOTHIAZYL) MERCAPTIDE.
Claim 3
Dependent Claim
8 words
PROCESS WHICH COMPRISES HEATING DIBUTYLTIN OXIDE WITH 2-MERCAPTOBENZOTHIAZOLE.
Claim 4
Dependent Claim
8 words
PROCESS WHICH COMPRISES HEATING DIBUTYLTIN OXIDE WITH 2-MERCAPTOBENZOTHIAZOLE.
References Cited (Backward Citations)
US2344002A
Cited
US2258718A
Cited
US2376313A
Cited
US2431038A
Cited
US2481086A
Cited
US2480823A
Cited
US2489518A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-07-29 | 1961-01-28 | 1961-07-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-07-29 | 1965-01-28 | 1965-07-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-07-29 | 1969-01-28 | 1969-07-30 | $7700.00 | Window Closed / Lapsed |