US2865918A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Diaminopolysiloxanes
Assignee: Rohm and Haas Co
•
Filing: 1955-06-01
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Granted: 1958-12-23
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Expires: 1975-06-01
Abstract
No abstract record available.
Inventors
- 👤 Marvin J Hurwitz
- 👤 Benneville Peter L De
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 17:17
CPC Classifications
C; C07; C07F; C07F7/00; C07F7/02; C07F7/08; C07F7/10; C14; C14C; C14C9/00; D; D06; D06M; D06M15/00; D06M15/19; D06M15/37; D06M15/643; D06M15/6436
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
50 words
A COMPOSITION COMPRISING A BIX-(AMINO)POLYDIMETHYLSILOXANE CONTAINING AN AVERAGE OF 2 TO 10 SILICON ATOMS AND IN WHICH THE AMINO NITROGEN ATOMS ARE SUBSTITUTED BY AT LEAST ONE SATURATED ALIPHATIC HYDROCARBON GROUP AND THE TOTAL OF THE CARBON ATOMS IN THE SUBSTITUENTS ON EACH NITROGEN ATOM IS FROM 2 TO 6.
Claim 2
Dependent Claim
50 words
A COMPOSITION COMPRISING A BIX-(AMINO)POLYDIMETHYLSILOXANE CONTAINING AN AVERAGE OF 2 TO 10 SILICON ATOMS AND IN WHICH THE AMINO NITROGEN ATOMS ARE SUBSTITUTED BY AT LEAST ONE SATURATED ALIPHATIC HYDROCARBON GROUP AND THE TOTAL OF THE CARBON ATOMS IN THE SUBSTITUENTS ON EACH NITROGEN ATOM IS FROM 2 TO 6.
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) | 1961-12-22 | 1962-06-23 | 1962-12-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-12-22 | 1966-06-23 | 1966-12-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-12-22 | 1970-06-23 | 1970-12-23 | $7700.00 | Window Closed / Lapsed |