US2829822A
Expired / Lapsed
US
⏱️ 0.0 years remaining
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Assignee: MARCHANT CALCULATORS Inc
•
Filing: 1949-10-24
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Granted: 1958-04-08
•
Expires: 1969-10-24
Abstract
No abstract record available.
Inventors
- 👤 Eugene E Reynolds
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 23:34
CPC Classifications
G; G06; G06F; G06F7/00; G06F7/38; G06F7/48; G06F7/57; G06F2207/00; G06F2207/38; G06F2207/3804; G06F2207/3808; G06F2207/3832; G06F2207/3836
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-04-07 | 1961-10-07 | 1962-04-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-04-07 | 1965-10-07 | 1966-04-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-04-07 | 1969-10-07 | 1970-04-08 | $7700.00 | Window Closed / Lapsed |