US3533813A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Low density clay ceramic compositions
Assignee: Honeywell International Inc
•
Filing: 1967-11-29
•
Granted: 1970-10-13
•
Expires: 1987-11-29
Abstract
No abstract record available.
Inventors
- 👤 Gerald L Geltman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:00
CPC Classifications
C; C04; C04B; C04B38/00; C04B38/06; C04B38/063; C04B33/00; C04B33/02; C04B33/13
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1657582A
Cited
US1925985A
Cited
US2553759A
Cited
US2877532A
Cited
US2996389A
Cited
US3150989A
Cited
US3256105A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-10-12 | 1974-04-13 | 1974-10-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-10-12 | 1978-04-13 | 1978-10-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-10-12 | 1982-04-13 | 1982-10-13 | $7700.00 | Window Closed / Lapsed |