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Patent US3317577A successfully refreshed from Google Patents.
US3317577A
Expired / Lapsed
US
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Modified polyalkyleneamine silicon compounds
Assignee: Dow Silicones Corp
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Filing: 1962-10-22
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Granted: 1967-05-02
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Expires: 1982-10-22
Abstract
No abstract record available.
Inventors
- 👤 John W Ryan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 22:17
CPC Classifications
C; C08; C08G; C08G77/00; C08G77/04; C08G77/38; C08G77/382; C08G77/388; C07; C07F; C07F7/00; C07F7/02; C07F7/08; C07F7/0834; C07F7/0838; C07F7/18; C07F7/1804; C08G77/22; C08G77/26
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
5 words
A SILANE OF THE FORMULA
Claim 2
Dependent Claim
5 words
A SILANE OF THE FORMULA
Claim 3
Dependent Claim
5 words
A SILANE OF THE FORMULA
Claim 4
Dependent Claim
5 words
A SILANE OF 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) | 1970-05-01 | 1970-10-31 | 1971-05-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-05-01 | 1974-10-31 | 1975-05-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-05-01 | 1978-10-31 | 1979-05-02 | $7700.00 | Window Closed / Lapsed |