US3051833A
Expired / Lapsed
US
⏱️ 0.0 years remaining
X-ray spectrometer
Assignee: Ortech Corp
•
Filing: 1959-03-30
•
Granted: 1962-08-28
•
Expires: 1979-03-30
Abstract
No abstract record available.
Inventors
- 👤 Wilhelm W B Schumacher
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 03:55
CPC Classifications
G; G01; G01N; G01N23/00; G01N23/20; G01N23/207; G01N23/2076
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1993058A
Cited
US2666147A
Cited
US2640948A
Cited
US2688094A
Cited
GB785845A
Cited
US2805341A
Cited
US2941443A
Cited
US2835820A
Cited
US2980798A
Cited
US2999931A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-08-27 | 1966-02-26 | 1966-08-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-08-27 | 1970-02-26 | 1970-08-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-08-27 | 1974-02-26 | 1974-08-28 | $7700.00 | Window Closed / Lapsed |