US2438730A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Computing device
Assignee: Individual
•
Filing: 1944-11-14
•
Granted: 1948-03-30
•
Expires: 1964-11-14
Abstract
No abstract record available.
Inventors
- 👤 Watter Michael
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 04:05
CPC Classifications
G; G06; G06G; G06G1/00; G06G1/0005; G06G1/0052
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1074439A
Cited
US1098621A
Cited
US1423449A
Cited
US1575911A
Cited
US1644791A
Cited
US2007986A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-03-30 | 1951-09-29 | 1952-03-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-03-30 | 1955-09-29 | 1956-03-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-03-30 | 1959-09-29 | 1960-03-30 | $7700.00 | Window Closed / Lapsed |