US3362228A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gas analysis apparatus with proportioning means
Assignee: H Maihak AG
•
Filing: 1964-04-21
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Granted: 1968-01-09
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Expires: 1984-04-21
Abstract
No abstract record available.
Inventors
- 👤 Stuben Hans
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:41
CPC Classifications
G; G01; G01N; G01N30/00; G01N30/02; G01N30/04; G01N30/24; F; F02; F02P; F02P5/00; F02P5/04; F02P5/145; F02P5/155; G01N1/00; G01N1/28; G01N1/38; G01N33/00; G01N33/0004; Y; Y02; Y02T; Y02T10/00; Y02T10/10; Y02T10/40
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) | 1971-01-08 | 1971-07-10 | 1972-01-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-01-08 | 1975-07-10 | 1976-01-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-01-08 | 1979-07-10 | 1980-01-09 | $7700.00 | Window Closed / Lapsed |