US3316412A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Single field polarizing spectrophotometer for measuring mass motion in a plasma
Assignee: Individual
•
Filing: 1964-06-09
•
Granted: 1967-04-25
•
Expires: 1984-06-09
Abstract
No abstract record available.
Inventors
- 👤 Joseph G Hirschberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 05:10
CPC Classifications
H; H05; H05H; H05H1/00; H05H1/0006
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-04-24 | 1970-10-24 | 1971-04-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-04-24 | 1974-10-24 | 1975-04-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-04-24 | 1978-10-24 | 1979-04-25 | $7700.00 | Window Closed / Lapsed |