US3211680A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tributyltin esters and antifouling compositions comprising the same
Assignee: 3M Co
•
Filing: 1961-09-18
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Granted: 1965-10-12
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Expires: 1981-09-18
Abstract
No abstract record available.
Inventors
- 👤 David M Updegraff
- 👤 Horace R Davis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 11:20
CPC Classifications
C; C07; C07F; C07F7/00; C07F7/22; C07F7/2224
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
19 words
AN ESTER OF BIS TRIBUTYLIN OXIDE SELECTED FROM THE CLASS CONSISTING OF TRIBUTYLIN TOLUENESULFONATE, TRIBUTYLTIN ISONICOTINATE AND TETRAKIS(TRIBUTYLTIN) PYROMELLITATE.
Claim 2
Dependent Claim
19 words
AN ESTER OF BIS TRIBUTYLIN OXIDE SELECTED FROM THE CLASS CONSISTING OF TRIBUTYLIN TOLUENESULFONATE, TRIBUTYLTIN ISONICOTINATE AND TETRAKIS(TRIBUTYLTIN) PYROMELLITATE.
Claim 3
Dependent Claim
49 words
A MARINE ANTIFOULING COMPOSITION COMPRISING, IN ADMIXTURE, A PERMEABLE MARINE PAINE CONTAINING FROM ABOUT 25 TO 85 WEIGHT PERCENT BASED ON THE DRY PAINT FILM OF AN ESTER OF BIS TRIBUTYLIN OXIDE SELECTED FROM THE CLASS CONSISTING OF TRIBUTYLTIN TOLUENESUFONAT, TRIBUTYLIN ISONICOTINATE, BIS (TRIBUTYLTIN) TEREPHTHALATE AND TETRAKIS (TRIBUTYLTIN) PYROMELLITATE.
Claim 4
Dependent Claim
49 words
A MARINE ANTIFOULING COMPOSITION COMPRISING, IN ADMIXTURE, A PERMEABLE MARINE PAINE CONTAINING FROM ABOUT 25 TO 85 WEIGHT PERCENT BASED ON THE DRY PAINT FILM OF AN ESTER OF BIS TRIBUTYLIN OXIDE SELECTED FROM THE CLASS CONSISTING OF TRIBUTYLTIN TOLUENESUFONAT, TRIBUTYLIN ISONICOTINATE, BIS (TRIBUTYLTIN) TEREPHTHALATE AND TETRAKIS (TRIBUTYLTIN) PYROMELLITATE.
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) | 1968-10-11 | 1969-04-12 | 1969-10-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-10-11 | 1973-04-12 | 1973-10-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-10-11 | 1977-04-12 | 1977-10-12 | $7700.00 | Window Closed / Lapsed |