US2438830A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Radiation pyrometer housing for
Assignee: —
•
Filing: —
•
Granted: 1948-03-30
•
Expires: 1965-03-30
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 19:28
CPC Classifications
G; G01; G01K; G01K11/00; G01K11/006; H; H03; H03K; H03K17/00; H03K17/94; H03K17/965; H03K17/968
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1038258A
Cited
US1667355A
Cited
US1423393A
Cited
US2073112A
Cited
US2025015A
Cited
US2194489A
Cited
US2369624A
Cited
US2366285A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-03-30 | 1951-09-29 | 1952-03-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-03-30 | 1955-09-29 | 1956-03-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-03-30 | 1959-09-29 | 1960-03-30 | $7700.00 | Window Closed / Lapsed |