US2900252A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for contacting molten glass
Assignee: Owens Corning
•
Filing: 1954-06-15
•
Granted: 1959-08-18
•
Expires: 1974-06-15
Abstract
No abstract record available.
Inventors
- 👤 Robert M Woodward
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 09:34
CPC Classifications
C; C03; C03B; C03B5/00; C03B5/16; C03B5/167; C03B5/1672; C03B5/1675
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
37 words
IN A GLASS WORKING AND HANDLING APPARATUS,A CONTAINER FOR MOLTEN GLASS HAVING PORTIONS IN DIRECT CONTACT WITH THE MOLTEN GLASS, SAID PORTIONS CONSISTING OF FROM 0.5 UP TO 3.5 PERCENT BY WEIGHT COPPER, 10.0 TO 35.0 PER-
Claim 2
Dependent Claim
37 words
IN A GLASS WORKING AND HANDLING APPARATUS,A CONTAINER FOR MOLTEN GLASS HAVING PORTIONS IN DIRECT CONTACT WITH THE MOLTEN GLASS, SAID PORTIONS CONSISTING OF FROM 0.5 UP TO 3.5 PERCENT BY WEIGHT COPPER, 10.0 TO 35.0 PER-
References Cited (Backward Citations)
US1115239A
Cited
US1203180A
Cited
US1168074A
Cited
US2109285A
Cited
US2266117A
Cited
US2343039A
Cited
US2607170A
Cited
US2711054A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-08-17 | 1963-02-16 | 1963-08-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-08-17 | 1967-02-16 | 1967-08-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-08-17 | 1971-02-16 | 1971-08-18 | $7700.00 | Window Closed / Lapsed |