Patent US3518462A successfully refreshed from Google Patents.
US3518462A
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US
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Fluid flow control system
Assignee: Guidance Technology Inc
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Filing: 1967-08-21
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Granted: 1970-06-30
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Expires: 1987-08-21
Abstract
No abstract record available.
Inventors
- 👤 Thomas Townsend Brown
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 05:04
CPC Classifications
H; H02; H02N; H02N3/00; F; F15; F15B; F15B21/00; F15B21/06; F15B21/065; F15C; F15C1/00; F15C1/02; F15C1/04; G; G05; G05D; G05D7/00; G05D7/06; H01; H01J; H01J41/00; H01J41/12; H01J41/18; H01J41/20; H02N11/00; H02N11/006; H04; H04R; H04R23/00; H04R23/004
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) | 1973-06-29 | 1973-12-29 | 1974-06-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-06-29 | 1977-12-29 | 1978-06-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-06-29 | 1981-12-29 | 1982-06-30 | $7700.00 | Window Closed / Lapsed |