Patent US2865885A successfully refreshed from Google Patents.
US2865885A
Expired / Lapsed
US
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Polyethylenically unsaturated substituted bis-amino polysiloxanes
Assignee: Rohm and Haas Co
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Filing: 1957-11-07
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Granted: 1958-12-23
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Expires: 1977-11-07
Abstract
No abstract record available.
Inventors
- 👤 Benneville Peter L De
- 👤 Marvin J Hurwitz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 18:13
CPC Classifications
C; C08; C08F; C08F30/00; C08F30/04; C08F30/08; C07; C07F; C07F7/00; C07F7/02; C07F7/08; C07F7/0834; C07F7/0838; C07F7/10; C08G; C08G77/00; C08G77/04; C08G77/38; C08G77/382; C08G77/388
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
5 words
A COMPOUND HAVING THE FORMULA:
Claim 2
Dependent Claim
5 words
A COMPOUND HAVING THE FORMULA:
References Cited (Backward Citations)
No citation records indexed.
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 |