Patent US3035449A successfully refreshed from Google Patents.
US3035449A
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Assignee: Dresser Industries Inc
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Filing: 1958-08-25
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Granted: 1962-05-22
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Expires: 1978-08-25
Abstract
No abstract record available.
Inventors
- 👤 Hans E Hollmann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:54
CPC Classifications
G; G01; G01P; G01P7/00; G01P15/00; G01P15/02; G01P15/08; G01P15/0888
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2733857A
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US1840001A
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US2384348A
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US2583202A
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US2882034A
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US2695165A
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US2856238A
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US2805373A
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US2805375A
Cited
US2819053A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-05-21 | 1965-11-20 | 1966-05-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-05-21 | 1969-11-20 | 1970-05-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-05-21 | 1973-11-20 | 1974-05-22 | $7700.00 | Window Closed / Lapsed |