US2987983A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Plastic casing for air exhauster
Assignee: Individual
•
Filing: 1958-10-28
•
Granted: 1961-06-13
•
Expires: 1978-10-28
Abstract
No abstract record available.
Inventors
- 👤 Isel I Solzman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 02:02
CPC Classifications
F; F24; F24F; F24F7/00; F24F7/02; F24F7/025
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB257490A
Cited
US2526290A
Cited
US2644389A
Cited
US2711682A
Cited
US2805974A
Cited
US2777382A
Cited
US2823598A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-06-12 | 1964-12-12 | 1965-06-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-06-12 | 1968-12-12 | 1969-06-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-06-12 | 1972-12-12 | 1973-06-13 | $7700.00 | Window Closed / Lapsed |