US3527585A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for the control of the heating value of natural gas
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1967-12-01
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Granted: 1970-09-08
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Expires: 1987-12-01
Abstract
No abstract record available.
Inventors
- 👤 Gerald M Ungerleider
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 07:07
CPC Classifications
C; C10; C10K; C10K3/00; C10K3/06; F; F17; F17C; F17C13/00; F17C13/02; F25; F25J; F25J1/00; F25J1/0002; F25J1/0022; F25J1/02; F25J1/0228; F25J1/0229; F25J1/0231; F25J1/0243; F25J1/0244; F25J1/0254; F25J1/0255; F25J2205/00; F25J2205/90; F25J2210/00; F25J2210/04; F25J2220/00; F25J2220/60; F25J2220/64; F25J2245/00; F25J2245/02; Y; Y10; Y10T; Y10T137/00; Y10T137/0318; Y10T137/0324; Y10T137/0329; Y10T137/0346
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-09-07 | 1974-03-09 | 1974-09-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-09-07 | 1978-03-09 | 1978-09-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-09-07 | 1982-03-09 | 1982-09-08 | $7700.00 | Window Closed / Lapsed |