Patent US2715133A successfully refreshed from Google Patents.
US2715133A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Organosil ylamines
Assignee: Dow Silicones Corp
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Filing: 1950-06-30
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Granted: 1955-08-09
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Expires: 1970-06-30
Abstract
No abstract record available.
Inventors
- 👤 John L Speier
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:34
CPC Classifications
C; C07; C07F; C07F7/00; C07F7/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
5 words
A COMPOUND OF THE FORMULA
Claim 2
Dependent Claim
5 words
A COMPOUND 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) | 1958-08-08 | 1959-02-07 | 1959-08-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-08-08 | 1963-02-07 | 1963-08-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-08-08 | 1967-02-07 | 1967-08-09 | $7700.00 | Window Closed / Lapsed |