US2598612A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Modulating system and apparatus
Assignee: TIMES FACSIMILE Corp
•
Filing: 1948-12-30
•
Granted: 1952-05-27
•
Expires: 1968-12-30
Abstract
No abstract record available.
Inventors
- 👤 John R Shonnard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 10:41
CPC Classifications
H; H01; H01J; H01J29/00; H01J29/02; H01J29/10; H01J29/36; H01J29/39; H01J29/43; H01J31/00; H01J31/08; H01J31/26; H01J31/28; H01J31/34
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1706185A
Cited
US2280922A
Cited
US2262123A
Cited
US2304091A
Cited
US2430095A
Cited
US2459778A
Cited
US2459293A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-05-27 | 1955-11-26 | 1956-05-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-05-27 | 1959-11-26 | 1960-05-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-05-27 | 1963-11-26 | 1964-05-27 | $7700.00 | Window Closed / Lapsed |