Patent US2688747A successfully refreshed from Google Patents.
Patent US3521112A successfully refreshed from Google Patents.
US3521112A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tubular support for tubular lamps
Assignee: General Electric Co
•
Filing: 1968-07-02
•
Granted: 1970-07-21
•
Expires: 1988-07-02
Abstract
No abstract record available.
Inventors
- 👤 La Verne E Walsh
- 👤 Gerald W Keimer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 13:29
CPC Classifications
H; H01; H01K; H01K1/00; H01K1/18; H01K1/24
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US923797A
Cited
US2064490A
Cited
US2910605A
Cited
US3173051A
Cited
US3211941A
Cited
US3390299A
Cited
GB1110928A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-07-20 | 1974-01-19 | 1974-07-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-07-20 | 1978-01-19 | 1978-07-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-07-20 | 1982-01-19 | 1982-07-21 | $7700.00 | Window Closed / Lapsed |