US2847238A
Expired / Lapsed
US
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Assignee: ExxonMobil Technology and Engineering Co
•
Filing: 1954-12-03
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Granted: 1958-08-12
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Expires: 1974-12-03
Abstract
No abstract record available.
Inventors
- 👤 Jr Thomas J Bolling
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 20:37
CPC Classifications
F; F16; F16B; F16B21/00; F16B21/10; F16B21/16; F16B21/18; Y; Y10; Y10T; Y10T403/00; Y10T403/32; Y10T403/32606; Y10T403/32861; Y10T403/32893; Y10T403/32909; Y10T403/32951; Y10T403/32959; Y10T403/70; Y10T403/7075; Y10T403/75
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US738503A
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US1572770A
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US1774347A
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FR851146A
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US2255217A
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US2322949A
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GB543733A
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US2456355A
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FR1066843A
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US2678853A
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US2704681A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-08-11 | 1962-02-10 | 1962-08-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-08-11 | 1966-02-10 | 1966-08-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-08-11 | 1970-02-10 | 1970-08-12 | $7700.00 | Window Closed / Lapsed |