US2712923A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid cooled roll
Assignee: Pilkington Group Ltd
•
Filing: 1952-01-02
•
Granted: 1955-07-12
•
Expires: 1972-01-02
Abstract
No abstract record available.
Inventors
- 👤 Wynne Hubert Cecil
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 13:32
CPC Classifications
C; C03; C03B; C03B13/00; C03B13/16; Y; Y10; Y10S; Y10S165/00; Y10S165/092; Y10S165/101; Y10S165/104; Y10S165/105
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1307160A
Cited
US996657A
Cited
US1692569A
Cited
US1657212A
Cited
US1894618A
Cited
US2300528A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-07-11 | 1959-01-10 | 1959-07-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-07-11 | 1963-01-10 | 1963-07-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-07-11 | 1967-01-10 | 1967-07-12 | $7700.00 | Window Closed / Lapsed |