Patent US2642653A successfully refreshed from Google Patents.
US2642653A
Expired / Lapsed
US
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Method of producing discharge heads and handle supports for barrel pumps
Assignee: Individual
•
Filing: 1950-01-30
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Granted: 1953-06-23
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Expires: 1970-01-30
Abstract
No abstract record available.
Inventors
- 👤 Edwin P Sundholm
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 04:45
CPC Classifications
B; B67; B67D; B67D7/00; B67D7/06; B67D7/58; B67D7/60; F; F04; F04B; F04B9/00; F04B9/14; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49229; Y10T29/49236; Y10T29/49428
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) | 1956-06-22 | 1956-12-22 | 1957-06-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-06-22 | 1960-12-22 | 1961-06-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-06-22 | 1964-12-22 | 1965-06-23 | $7700.00 | Window Closed / Lapsed |