Patent US2804870A successfully refreshed from Google Patents.
Patent US3097300A successfully refreshed from Google Patents.
US3097300A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thermal detector and reference source
Assignee: Barnes Engineering Co
•
Filing: 1960-10-06
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Granted: 1963-07-09
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Expires: 1980-10-06
Abstract
No abstract record available.
Inventors
- 👤 Eric M Wormser
- 👤 Waard Russell D De
- 👤 Andrew C Rudomanski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:28
CPC Classifications
G; G01; G01J; G01J5/00; G01J5/52
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
38 words
A RADIATION DETECTING DEVICE COMPRISING IN COMBINATION AND IN OPTICAL ALIGNMENT A BLACK BODY REFERENCE CAVITY, A CHOPPER AND A DETECTOR, THE CHOPPER COMPRISING ALTERNATING TRANSMITTING AND OPAQUE SECTORS, THE OPAQUE SECTORS FORMING ONE WALL OF THE CAVITY.
Claim 2
Dependent Claim
38 words
A RADIATION DETECTING DEVICE COMPRISING IN COMBINATION AND IN OPTICAL ALIGNMENT A BLACK BODY REFERENCE CAVITY, A CHOPPER AND A DETECTOR, THE CHOPPER COMPRISING ALTERNATING TRANSMITTING AND OPAQUE SECTORS, THE OPAQUE SECTORS FORMING ONE WALL OF THE CAVITY.
References Cited (Backward Citations)
US2742578A
Cited
US2895049A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-07-08 | 1967-01-07 | 1967-07-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-07-08 | 1971-01-07 | 1971-07-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-07-08 | 1975-01-07 | 1975-07-09 | $7700.00 | Window Closed / Lapsed |