US2777533A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Oil and gas separator
Assignee: Graver Energy Systems Inc
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Filing: 1955-07-21
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Granted: 1957-01-15
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Expires: 1975-07-21
Abstract
No abstract record available.
Inventors
- 👤 Allmon F Segrest
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 22:17
CPC Classifications
C; C10; C10G; C10G31/00; C10G7/00; E; E21; E21B; E21B43/00; E21B43/34; F; F22; F22B; F22B37/00; F22B37/02; F22B37/26; F22B37/265
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) | 1960-01-15 | 1960-07-16 | 1961-01-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-01-15 | 1964-07-16 | 1965-01-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-01-15 | 1968-07-16 | 1969-01-15 | $7700.00 | Window Closed / Lapsed |