US2606645A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for conveying plastic building materials
Assignee: Individual
•
Filing: 1949-12-07
•
Granted: 1952-08-12
•
Expires: 1969-12-07
Abstract
No abstract record available.
Inventors
- 👤 Heine Henry William
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 11:04
CPC Classifications
F; F04; F04D; F04D3/00; F04D3/02; F04D29/00; F04D29/18; F04D29/181; F04D7/00; Y; Y10; Y10S; Y10S417/00; Y10S417/90; Y10T; Y10T403/00; Y10T403/29; Y10T403/295; Y10T403/55; Y10T403/551
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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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) | 1955-08-12 | 1956-02-11 | 1956-08-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-08-12 | 1960-02-11 | 1960-08-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-08-12 | 1964-02-11 | 1964-08-12 | $7700.00 | Window Closed / Lapsed |