Patent US1277998A successfully refreshed from Google Patents.
Patent US2799848A successfully refreshed from Google Patents.
US2799848A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Two-level control system
Assignee: Individual
•
Filing: 1953-12-17
•
Granted: 1957-07-16
•
Expires: 1973-12-17
Abstract
No abstract record available.
Inventors
- 👤 Glantz Lester Murray
- 👤 Jacket Howard Samuel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 17:41
CPC Classifications
G; G05; G05D; G05D9/00; G05D9/12; Y; Y10; Y10T; Y10T137/00; Y10T137/7287; Y10T137/7358
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2385161A
Cited
US2339532A
Cited
US2394220A
Cited
US2460789A
Cited
US2551225A
Cited
US2547332A
Cited
US2664556A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-07-15 | 1961-01-14 | 1961-07-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-07-15 | 1965-01-14 | 1965-07-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-07-15 | 1969-01-14 | 1969-07-16 | $7700.00 | Window Closed / Lapsed |