US2727683A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Registers
Assignee: Individual
•
Filing: 1946-01-11
•
Granted: 1955-12-20
•
Expires: 1966-01-11
Abstract
No abstract record available.
Inventors
- 👤 Philip H Allen
- 👤 Benjamin J Chromy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 15:44
CPC Classifications
G; G06; G06F; G06F7/00; G06F7/38; G06F7/48; G06F7/491; G06F7/498; G06F7/4981; G09; G09G; G09G3/00; G09G3/04; G09G3/045; H; H03; H03K; H03K17/00; H03K17/94; H03K17/965; H03K17/968; H03K17/969; H03K21/00; H03K21/02; H03K23/00; H03K23/78; H03K23/82
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2310105A
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US2402988A
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US2401621A
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US2398771A
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US2442428A
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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) | 1958-12-19 | 1959-06-20 | 1959-12-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-12-19 | 1963-06-20 | 1963-12-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-12-19 | 1967-06-20 | 1967-12-20 | $7700.00 | Window Closed / Lapsed |