US3095311A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Glass compositions
Assignee: CURTIS MEANOR H
•
Filing: 1960-06-29
•
Granted: 1963-06-25
•
Expires: 1980-06-29
Abstract
No abstract record available.
Inventors
- 👤 Wranau Guido Von
- 👤 Charles J Phillips
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 18:19
CPC Classifications
C; C03; C03C; C03C3/00; C03C3/04; C03C3/076; C03C3/089; C03C3/091; C03C13/00; C03C3/083; C03C3/085; C03C3/087; C03C3/093; C03C3/11; C03C3/112; C03C3/115; C03C3/118
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
75 words
GLASS FIBERS CONSISTING ESSENTIALLY OF PERCENT SIO2 40 TO 59 AL203 7 TO 17 CAO 9 TO 24 PBO 0 TO 11 ZNO 0 TO 11 BAO 0 TO 5 MGO 0 TO 5 CAF2 0 TO 3 B203 0 TO 6 TIO2 0 TO 7 ZRO2 0 TO 4 LI2O 1 TO 4 NA20 0 TO 4 K20 0 TO 6 THE COMBINED AMOUNTS OF LI2O, NA2O AND K2O VARYING BETWEEN 2 AND 7%.
Claim 2
Dependent Claim
75 words
GLASS FIBERS CONSISTING ESSENTIALLY OF PERCENT SIO2 40 TO 59 AL203 7 TO 17 CAO 9 TO 24 PBO 0 TO 11 ZNO 0 TO 11 BAO 0 TO 5 MGO 0 TO 5 CAF2 0 TO 3 B203 0 TO 6 TIO2 0 TO 7 ZRO2 0 TO 4 LI2O 1 TO 4 NA20 0 TO 4 K20 0 TO 6 THE COMBINED AMOUNTS OF LI2O, NA2O AND K2O VARYING BETWEEN 2 AND 7%.
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) | 1966-06-24 | 1966-12-24 | 1967-06-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-06-24 | 1970-12-24 | 1971-06-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-06-24 | 1974-12-24 | 1975-06-25 | $7700.00 | Window Closed / Lapsed |