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Patent US744813A successfully refreshed from Google Patents.
US744813A
Expired / Lapsed
US
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Barrel-lifter.
Assignee: Individual
•
Filing: 1903-06-01
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Granted: 1903-11-24
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Expires: 1923-06-01
Abstract
No abstract record available.
Inventors
- 👤 William J Stewart
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 22:34
CPC Classifications
B; B66; B66C; B66C1/00; B66C1/10; B66C1/22; B66C1/28; B66C1/30; E; E21; E21B; E21B19/00; E21B19/02; E21B19/06; E21B19/07
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) | 1906-11-23 | 1907-05-25 | 1907-11-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1910-11-23 | 1911-05-25 | 1911-11-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1914-11-23 | 1915-05-25 | 1915-11-24 | $7700.00 | Window Closed / Lapsed |