US2729700A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Facsimile system with automatic density control
Assignee: Faximile Inc
•
Filing: 1951-03-16
•
Granted: 1956-01-03
•
Expires: 1971-03-16
Abstract
No abstract record available.
Inventors
- 👤 Frank A Hester
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 20:47
CPC Classifications
H; H04; H04N; H04N1/00; H04N1/40; H04N1/407; H04N1/4076
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
AU2621530A
Cited
GB422914A
Cited
US2208927A
Cited
US2258871A
Cited
US2251929A
Cited
US2300942A
Cited
US2288434A
Cited
GB560122A
Cited
US2457131A
Cited
US2506668A
Cited
US2550960A
Cited
US2615089A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-01-02 | 1959-07-04 | 1960-01-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-01-02 | 1963-07-04 | 1964-01-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-01-02 | 1967-07-04 | 1968-01-03 | $7700.00 | Window Closed / Lapsed |