Patent US3502274A successfully refreshed from Google Patents.
US3502274A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Comminuting pump
Assignee: Individual
•
Filing: 1965-05-03
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Granted: 1970-03-24
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Expires: 1985-05-03
Abstract
No abstract record available.
Inventors
- 👤 Georg Neidl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 23:23
CPC Classifications
B; B02; B02C; B02C18/00; B02C18/0084; B02C18/0092; B01; B01D; B01D21/00; B01D21/0012; B01D21/26; B01D21/262; B01D29/00; B01D29/01; B01D29/03; B01D29/035; B01D29/11; B01D29/31; B01D29/35; B01D29/50; B01D29/52; B01D29/54; B01D29/76; B01D29/86; B01D29/88; B01D29/94; B01D29/945; B01D35/00; B01D35/26; B02C13/00; B02C13/13; B07; B07B; B07B1/00; F; F04; F04D; F04D11/00; F04D11/005; B07B2230/00; B07B2230/01
Claims Analysis
Total Claims: 0
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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) | 1973-03-23 | 1973-09-22 | 1974-03-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-03-23 | 1977-09-22 | 1978-03-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-03-23 | 1981-09-22 | 1982-03-24 | $7700.00 | Window Closed / Lapsed |