US2756345A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Acoustic ionization detector
Assignee: Individual
•
Filing: 1955-04-06
•
Granted: 1956-07-24
•
Expires: 1975-04-06
Abstract
No abstract record available.
Inventors
- 👤 Jr Frank S Replogle
- 👤 David R Whitehouse
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 19:37
CPC Classifications
G; G01; G01T; G01T3/00; H; H01; H01J; H01J47/00; H01J47/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
58 words
APPARATUS FOR MEASURING THE INTENSITY OF SELECTED RADIATIONS COMPRISING, AN ENCLOSED CHAMBER CONTAINING A GAS, MEANS ASSOCIATED WITH SAID CHAMBER FOR RESTRICTING IONIZATION ARISING FROM INCIDENCE OF SAID SELECTED RADIATIONS TO A PORTION OF SAID CHAMBER, EXCITATION MEANS ADAPTED TO PRODUCE IN SAID CHAMBER A VARYING ION ACCELERATING FIELD, AND MEANS FOR INDICATING PRESSURE VARIATIONS WITHIN SAID CHAMBER.
Claim 2
Dependent Claim
58 words
APPARATUS FOR MEASURING THE INTENSITY OF SELECTED RADIATIONS COMPRISING, AN ENCLOSED CHAMBER CONTAINING A GAS, MEANS ASSOCIATED WITH SAID CHAMBER FOR RESTRICTING IONIZATION ARISING FROM INCIDENCE OF SAID SELECTED RADIATIONS TO A PORTION OF SAID CHAMBER, EXCITATION MEANS ADAPTED TO PRODUCE IN SAID CHAMBER A VARYING ION ACCELERATING FIELD, AND MEANS FOR INDICATING PRESSURE VARIATIONS WITHIN SAID 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) | 1959-07-24 | 1960-01-23 | 1960-07-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-07-24 | 1964-01-23 | 1964-07-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-07-24 | 1968-01-23 | 1968-07-24 | $7700.00 | Window Closed / Lapsed |