US2890403A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Transistor pulse generator
Assignee: US Philips Corp
•
Filing: 1956-01-26
•
Granted: 1959-06-09
•
Expires: 1976-01-26
Abstract
No abstract record available.
Inventors
- 👤 Hehri Herman Van Abbe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 02:20
CPC Classifications
H; H02; H02M; H02M3/00; H02M3/22; H02M3/24; H02M3/28; H02M3/325; H02M3/335; H02M3/338; H02M3/3381; H02M7/00; H02M7/42; H02M7/44; H02M7/48; H02M7/53; H02M7/537; H02M7/5383; H03; H03K; H03K3/00; H03K3/02; H03K3/26; H03K3/30; H03K4/00; H03K4/06; H03K4/08; H03K4/48; H03K4/60
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2780767A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-06-08 | 1962-12-08 | 1963-06-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-06-08 | 1966-12-08 | 1967-06-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-06-08 | 1970-12-08 | 1971-06-09 | $7700.00 | Window Closed / Lapsed |