US3477509A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Underground storage for lng
Assignee: ExxonMobil Technology and Engineering Co
•
Filing: 1968-03-15
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Granted: 1969-11-11
•
Expires: 1988-03-15
Abstract
No abstract record available.
Inventors
- 👤 Harry S Arendt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 20:34
CPC Classifications
F; F17; F17C; F17C3/00; F17C3/005; B; B65; B65G; B65G5/00; F17C2201/00; F17C2201/05; F17C2201/052; F17C2221/00; F17C2221/03; F17C2221/032; F17C2221/033; F17C2223/00; F17C2223/01; F17C2223/0146; F17C2223/0153; F17C2223/0161; F17C2223/03; F17C2223/033; F17C2227/00; F17C2227/01; F17C2227/0128; F17C2227/0135; F17C2227/04; F17C2227/044; F17C2270/00; F17C2270/01; F17C2270/0102; F17C2270/0118; F17C2270/0128; F17C2270/0142; F17C2270/0144; F17C2270/0155
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3275078A
Cited
US3304725A
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US3296805A
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US3301326A
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US3306354A
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US3344607A
Cited
US3393738A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-11-10 | 1973-05-12 | 1973-11-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-11-10 | 1977-05-12 | 1977-11-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-11-10 | 1981-05-12 | 1981-11-11 | $7700.00 | Window Closed / Lapsed |