US2640784A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Composition of glass, especially for fibers
Assignee: Owens Corning
•
Filing: 1950-01-21
•
Granted: 1953-06-02
•
Expires: 1970-01-21
Abstract
No abstract record available.
Inventors
- 👤 Ralph L Tiede
- 👤 Fay V Tooley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 15:44
CPC Classifications
C; C03; C03C; C03C13/00; C03C3/00; C03C3/04; C03C3/076; C03C3/089; C03C3/091; C03C3/11; C03C3/112; C03C3/115; C03C3/118; Y; Y10; Y10S; Y10S264/00; Y10S264/19
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
8 words
GLASS HAVING SUBSTANTIALLY THE FOLLOWING COMPOSITION BY WEIGHT:
References Cited (Backward Citations)
US1362917A
Cited
US1292147A
Cited
US1292148A
Cited
US2143022A
Cited
US2388866A
Cited
US2433883A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-06-01 | 1956-12-01 | 1957-06-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-06-01 | 1960-12-01 | 1961-06-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-06-01 | 1964-12-01 | 1965-06-02 | $7700.00 | Window Closed / Lapsed |