Patent US2837281A successfully refreshed from Google Patents.
US2837281A
Expired / Lapsed
US
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Totalisator equipment
Assignee: International Standard Electric Corp
•
Filing: 1952-05-13
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Granted: 1958-06-03
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Expires: 1972-05-13
Abstract
No abstract record available.
Inventors
- 👤 Wright Esmond Philip Goodwin
- 👤 Weir Donald Adams
- 👤 Phillips Glyndwr Rhys
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 07:05
CPC Classifications
H; H03; H03K; H03K29/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2557384A
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US2558218A
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US2592312A
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US2605967A
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US2622802A
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US2523516A
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US2668009A
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US2472542A
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US2563041A
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US2528394A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-06-02 | 1961-12-02 | 1962-06-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-06-02 | 1965-12-02 | 1966-06-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-06-02 | 1969-12-02 | 1970-06-03 | $7700.00 | Window Closed / Lapsed |