US2696699A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Glass forming
Assignee: Corning Glass Works
•
Filing: 1952-02-08
•
Granted: 1954-12-14
•
Expires: 1972-02-08
Abstract
No abstract record available.
Inventors
- 👤 James W Giffen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 22:46
CPC Classifications
C; C03; C03B; C03B19/00; C03B19/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US960587A
Cited
US1721983A
Cited
US1859957A
Cited
AU2334829A
Cited
US2198750A
Cited
US2374269A
Cited
GB566519A
Cited
US2475915A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-12-13 | 1958-06-14 | 1958-12-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-12-13 | 1962-06-14 | 1962-12-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-12-13 | 1966-06-14 | 1966-12-14 | $7700.00 | Window Closed / Lapsed |