US2706304A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Block scraper
Assignee: Individual
•
Filing: 1950-07-29
•
Granted: 1955-04-19
•
Expires: 1970-07-29
Abstract
No abstract record available.
Inventors
- 👤 Demory Harry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 21:32
CPC Classifications
B; B27; B27G; B27G17/00; B27G17/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1414305A
Cited
US1387027A
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US1643882A
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US1670068A
Cited
FR729658A
Cited
US2015220A
Cited
US2178169A
Cited
US2157493A
Cited
US2281278A
Cited
US2306470A
Cited
US2480739A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-04-18 | 1958-10-18 | 1959-04-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-04-18 | 1962-10-18 | 1963-04-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-04-18 | 1966-10-18 | 1967-04-19 | $7700.00 | Window Closed / Lapsed |