Patent US2084490A successfully refreshed from Google Patents.
US2084490A
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Assignee: WILLIAM E HOOPER AND SONS Co
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Filing: 1937-01-16
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Granted: 1937-06-22
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Expires: 1957-01-16
Abstract
No abstract record available.
Inventors
- 👤 James E Hooper
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:46
CPC Classifications
D; D21; D21F; D21F7/00; D21F7/08; D21F7/10; Y; Y10; Y10T; Y10T24/00; Y10T24/16; Y10T24/1608; Y10T24/1636
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1940-06-21 | 1940-12-21 | 1941-06-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1944-06-21 | 1944-12-21 | 1945-06-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1948-06-21 | 1948-12-21 | 1949-06-22 | $7700.00 | Window Closed / Lapsed |