Patent US3515836A successfully refreshed from Google Patents.
US3515836A
Expired / Lapsed
US
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Elevator means for a heat scanner device
Assignee: BUSINESS ASSETS CORP
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Filing: 1968-06-24
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Granted: 1970-06-02
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Expires: 1988-06-24
Abstract
No abstract record available.
Inventors
- 👤 William C Kallas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 15:29
CPC Classifications
H; H05; H05B; H05B6/00; H05B6/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US3030194A
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US2905798A
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US3036186A
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US3136876A
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US3144308A
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US3254228A
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US3252693A
Cited
US3271551A
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US3338759A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-06-01 | 1973-12-01 | 1974-06-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-06-01 | 1977-12-01 | 1978-06-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-06-01 | 1981-12-01 | 1982-06-02 | $7700.00 | Window Closed / Lapsed |