US3243993A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid pressure operated sensing head
Assignee: HG Weber and Co Inc
•
Filing: 1963-05-15
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Granted: 1966-04-05
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Expires: 1983-05-15
Abstract
No abstract record available.
Inventors
- 👤 Paul W Jacobsen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 21:18
CPC Classifications
G; G01; G01B; G01B13/00; B; B65; B65H; B65H23/00; B65H23/02; B65H23/0204; B65H23/0212; B65H23/032; B65H23/038; D; D21; D21F; D21F1/00; D21F1/36; D21F1/365; Y; Y10; Y10T; Y10T137/00; Y10T137/2278
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB442365A
Cited
US2539131A
Cited
DE1008106B
Cited
US2794444A
Cited
US3115037A
Cited
US3159170A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-04-04 | 1969-10-04 | 1970-04-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-04-04 | 1973-10-04 | 1974-04-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-04-04 | 1977-10-04 | 1978-04-05 | $7700.00 | Window Closed / Lapsed |