Patent US2953466A successfully refreshed from Google Patents.
US2953466A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Silicon-mica composition
Assignee: North American Aviation Corp
•
Filing: 1956-08-09
•
Granted: 1960-09-20
•
Expires: 1976-08-09
Abstract
No abstract record available.
Inventors
- 👤 Sanford W Brown
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 22:05
CPC Classifications
C; C04; C04B; C04B26/00; C04B26/30; C04B26/32
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
10 words
A COMPOSITION OF MATTER CONSISTING ESSENTIALLY OF SILICON-BONDED MICA PARTICLES.
Claim 2
Dependent Claim
10 words
A COMPOSITION OF MATTER CONSISTING ESSENTIALLY OF SILICON-BONDED MICA PARTICLES.
References Cited (Backward Citations)
US2174770A
Cited
US2432891A
Cited
US2456251A
Cited
US2388161A
Cited
US2443663A
Cited
US2595730A
Cited
US2590493A
Cited
US2641044A
Cited
US2718483A
Cited
US2739638A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-09-20 | 1964-03-21 | 1964-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-09-20 | 1968-03-21 | 1968-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-09-20 | 1972-03-21 | 1972-09-20 | $7700.00 | Window Closed / Lapsed |