US2582986A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Storage vault conditioning unit
Assignee: WALTER HAERTEL Co
•
Filing: 1949-06-10
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Granted: 1952-01-22
•
Expires: 1969-06-10
Abstract
No abstract record available.
Inventors
- 👤 Walter G Haertel
- 👤 David H Oliver
- 👤 Verner H Smallbeck
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 20:36
CPC Classifications
F; F24; F24F; F24F3/00; F24F3/12; F24F3/14; F24F1/00; F24F1/02; F24F1/022; Y; Y10; Y10S; Y10S261/00; Y10S261/34
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) | 1955-01-21 | 1955-07-23 | 1956-01-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-01-21 | 1959-07-23 | 1960-01-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-01-21 | 1963-07-23 | 1964-01-22 | $7700.00 | Window Closed / Lapsed |