US2527591A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydroxymethyl siloxanes
Assignee: Dow Silicones Corp
•
Filing: 1948-07-02
•
Granted: 1950-10-31
•
Expires: 1968-07-02
Abstract
No abstract record available.
Inventors
- 👤 Jr John Leopold Speier
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 17:45
CPC Classifications
C; C10; C10M; C10M107/00; C10M107/20; C10M107/30; C10M107/32; C10M107/34; B; B01; B01D; B01D19/00; B01D19/02; B01D19/04; B01D19/0404; B01D19/0409; C07; C07F; C07F7/00; C07F7/02; C07F7/08; C07F7/0834; C07F7/0838; C07F7/0872; C07F7/0874; C07F7/0889; C08; C08G; C08G77/00; C08G77/04; C08G77/14; C08G77/38; C10M2209/00; C10M2209/10; C10M2209/103; C10M2209/104; C10M2209/1045; C10M2209/105; C10M2209/1055; C10M2209/109; C10M2209/1095; C10N; C10N2020/00; C10N2020/01; C10N2020/02; C10N2070/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
6 words
COMPOSITIONS OF THE AVERAGE GENERAL FORMULA
Claim 2
Dependent Claim
6 words
COMPOSITIONS OF THE AVERAGE GENERAL FORMULA
References Cited (Backward Citations)
US175262A
Cited
US1313402A
Cited
US1094914A
Cited
US1103698A
Cited
US1166843A
Cited
US1269002A
Cited
US1331480A
Cited
GB141606A
Cited
US1314785A
Cited
US1458768A
Cited
US1461149A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-10-30 | 1954-05-01 | 1954-10-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-10-30 | 1958-05-01 | 1958-10-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-10-30 | 1962-05-01 | 1962-10-31 | $7700.00 | Window Closed / Lapsed |