US3421043A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for adjusting purity
Assignee: Motorola Solutions Inc
•
Filing: 1967-04-28
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Granted: 1969-01-07
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Expires: 1987-04-28
Abstract
No abstract record available.
Inventors
- 👤 Ernest C Macintyre Jr
- 👤 Robert B Hansen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 08:23
CPC Classifications
H; H04; H04N; H04N9/00; H04N9/12; H04N9/16; H04N9/28; H01; H01J; H01J29/00; H01J29/46; H01J29/70; H01J29/701; H01J29/702; H01J2229/00; H01J2229/56; H01J2229/568; H01J2229/5681; H01J2229/5682; H01J2229/5687
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2910618A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-01-07 | 1972-07-08 | 1973-01-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-01-07 | 1976-07-08 | 1977-01-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-01-07 | 1980-07-08 | 1981-01-07 | $7700.00 | Window Closed / Lapsed |