US2896112A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cathode ray tube apparatus
Assignee: Individual
•
Filing: 1957-09-30
•
Granted: 1959-07-21
•
Expires: 1977-09-30
Abstract
No abstract record available.
Inventors
- 👤 Philip H Allen
- 👤 Benjamin J Chromy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 05:48
CPC Classifications
H; H01; H01J; H01J31/00; H01J31/02; H01J31/06; G; G06; G06F; G06F3/00; G06F3/01; G06F3/02
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2075142A
Cited
US2165308A
Cited
US2204055A
Cited
US2274586A
Cited
US2224677A
Cited
US2395299A
Cited
US2361766A
Cited
US2446945A
Cited
US2498081A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-07-20 | 1963-01-19 | 1963-07-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-07-20 | 1967-01-19 | 1967-07-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-07-20 | 1971-01-19 | 1971-07-21 | $7700.00 | Window Closed / Lapsed |