Patent US1780880A successfully refreshed from Google Patents.
US1780880A
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Assignee: LEONARD M DAVENPORT
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Filing: 1930-03-25
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Granted: 1930-11-04
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Expires: 1950-03-25
Abstract
No abstract record available.
Inventors
- 👤 Eric G Johnson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 20:47
CPC Classifications
B; B65; B65D; B65D33/00; B65D33/16; B65D33/1658; B65D33/1675; Y; Y10; Y10T; Y10T24/00; Y10T24/15; Y10T24/46; Y10T24/4604; Y10T24/4664; Y10T24/4668; Y10T24/4671
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) | 1933-11-03 | 1934-05-05 | 1934-11-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1937-11-03 | 1938-05-05 | 1938-11-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1941-11-03 | 1942-05-05 | 1942-11-04 | $7700.00 | Window Closed / Lapsed |