Patent US5838203A successfully refreshed from Google Patents.
Patent US1828681A successfully refreshed from Google Patents.
Patent US3326048A successfully refreshed from Google Patents.
US3326048A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Manometer
Assignee: Individual
•
Filing: 1965-05-14
•
Granted: 1967-06-20
•
Expires: 1985-05-14
Abstract
No abstract record available.
Inventors
- 👤 George C Benson
- 👤 John E Allen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 15:23
CPC Classifications
G; G01; G01L; G01L7/00; G01L7/18; G01L7/182
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
118 words
A MERCURY MANOMETER HOUSING DEFINING A CHAMBER SHAPED LIKE A U OF WHICH THE BASE IS HORIZONTAL AND THE LEGS EXTEND UPWARD FROM THE ENDS OF THE BASE, THE CHAMBER HAVING A FIRST GROOVE IN AN INTERIOR WALL EXTENDING ALONG THE ENTIRE LENGTH OF THE TOP OF THE BASE OF THE CHAMBER AND FROM THE BASE ALONG ONLY ONE OF THE LEGS OF THE CHAMBER, THE CHAMBER ALSO HAVING A SECOND GROOVE IN AN INTERIOR WALL COMPLETELY SEPARATE FROM THE FIRST GROOVE AND EXTENDING ALONG THE ENTIRE LENGTH OF THE TOP OF THE BASE OF THE CHAMBER IN SPACED RELATION TO THE FIRST GROOVE AND FROM THE BASE ALONG ONLY THE OTHER OF THE LEGS OF THE CHAMBER.
Claim 2
Dependent Claim
118 words
A MERCURY MANOMETER HOUSING DEFINING A CHAMBER SHAPED LIKE A U OF WHICH THE BASE IS HORIZONTAL AND THE LEGS EXTEND UPWARD FROM THE ENDS OF THE BASE, THE CHAMBER HAVING A FIRST GROOVE IN AN INTERIOR WALL EXTENDING ALONG THE ENTIRE LENGTH OF THE TOP OF THE BASE OF THE CHAMBER AND FROM THE BASE ALONG ONLY ONE OF THE LEGS OF THE CHAMBER, THE CHAMBER ALSO HAVING A SECOND GROOVE IN AN INTERIOR WALL COMPLETELY SEPARATE FROM THE FIRST GROOVE AND EXTENDING ALONG THE ENTIRE LENGTH OF THE TOP OF THE BASE OF THE CHAMBER IN SPACED RELATION TO THE FIRST GROOVE AND FROM THE BASE ALONG ONLY THE OTHER OF THE LEGS OF THE CHAMBER.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-06-19 | 1970-12-19 | 1971-06-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-06-19 | 1974-12-19 | 1975-06-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-06-19 | 1978-12-19 | 1979-06-20 | $7700.00 | Window Closed / Lapsed |