US2591055A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Desiccator using an absorbent
Assignee: Harry W Dietert Co
•
Filing: 1949-05-02
•
Granted: 1952-04-01
•
Expires: 1969-05-02
Abstract
No abstract record available.
Inventors
- 👤 Harry W Dietert
- 👤 John A Schuch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 17:10
CPC Classifications
B; B01; B01L; B01L1/00; B01L1/02; F; F26; F26B; F26B21/00; F26B21/30; F26B21/33; F26B21/331; F26B3/00; F26B9/00; F26B9/003
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US307230A
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US1262081A
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US1425790A
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US2359831A
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US2446361A
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US2487620A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-04-01 | 1955-10-01 | 1956-04-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-04-01 | 1959-10-01 | 1960-04-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-04-01 | 1963-10-01 | 1964-04-01 | $7700.00 | Window Closed / Lapsed |