US3029581A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Desiccating apparatus
Assignee: Robbins Aviation Inc
•
Filing: 1957-03-25
•
Granted: 1962-04-17
•
Expires: 1977-03-25
Abstract
No abstract record available.
Inventors
- 👤 Hugh C Robbins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:04
CPC Classifications
B; B01; B01D; B01D53/00; B01D53/26; F; F24; F24F; F24F3/00; F24F3/12; F24F3/14; F24F3/1411
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1965-04-16 | 1965-10-16 | 1966-04-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-04-16 | 1969-10-16 | 1970-04-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-04-16 | 1973-10-16 | 1974-04-17 | $7700.00 | Window Closed / Lapsed |