US2649542A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Function generator
Assignee: Askania Regulator Co
•
Filing: 1949-02-11
•
Granted: 1953-08-18
•
Expires: 1969-02-11
Abstract
No abstract record available.
Inventors
- 👤 Glass Paul
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 13:28
CPC Classifications
H; H01; H01J; H01J31/00; H01J31/02; H01J31/06
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1757345A
Cited
US2189898A
Cited
US2096653A
Cited
US2144337A
Cited
US2171936A
Cited
US2257795A
Cited
US2241027A
Cited
US2357922A
Cited
US2438709A
Cited
US2365476A
Cited
US2418133A
Cited
US2430331A
Cited
US2438928A
Cited
US2461667A
Cited
US2473691A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-08-17 | 1957-02-16 | 1957-08-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-08-17 | 1961-02-16 | 1961-08-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-08-17 | 1965-02-16 | 1965-08-18 | $7700.00 | Window Closed / Lapsed |