US3271173A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Preparation of alumina monofilaments
Assignee: Horizons Inc
•
Filing: 1965-03-31
•
Granted: 1966-09-06
•
Expires: 1985-03-31
Abstract
No abstract record available.
Inventors
- 👤 Robert J Lockhart
- 👤 Wainer Eugene
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 23:06
CPC Classifications
C; C04; C04B; C04B35/00; C04B35/622; C04B35/62227; C04B35/62231; C04B35/62236; Y; Y10; Y10S; Y10S264/00; Y10S264/19
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
15 words
A MONOAFILAMENT HAVING A DIAMETER OF ABOUT 20 MICRONS AND CONSISTING ESSENTIALLY OF LI2O.5AL2O3 SPINEL.
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) | 1969-09-05 | 1970-03-07 | 1970-09-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-05 | 1974-03-07 | 1974-09-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-05 | 1978-03-07 | 1978-09-06 | $7700.00 | Window Closed / Lapsed |