US2889477A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Clamp and mounting arrangement
Assignee: GTE Sylvania Inc
•
Filing: 1955-06-16
•
Granted: 1959-06-02
•
Expires: 1975-06-16
Abstract
No abstract record available.
Inventors
- 👤 Harry C King
- 👤 Wilfred H Hough
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 23:50
CPC Classifications
H; H01; H01J; H01J29/00; H01J29/46; H01J29/82; H01J29/823
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2733434A
Cited
US2212953A
Cited
US2234720A
Cited
US2304343A
Cited
GB673820A
Cited
US2552357A
Cited
US2717324A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-06-01 | 1962-12-01 | 1963-06-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-06-01 | 1966-12-01 | 1967-06-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-06-01 | 1970-12-01 | 1971-06-02 | $7700.00 | Window Closed / Lapsed |