US2514516A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Duster
Assignee: Individual
•
Filing: 1946-03-26
•
Granted: 1950-07-11
•
Expires: 1966-03-26
Abstract
No abstract record available.
Inventors
- 👤 Ralph R Root
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 16:51
CPC Classifications
B; B05; B05B; B05B11/00; B05B11/01; B05B11/06; B05B11/062; B05B11/04; B05B11/041
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US180135A
Cited
US809281A
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US1272283A
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US1422253A
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US1676462A
Cited
US1777278A
Cited
US1889201A
Cited
US2116715A
Cited
US2086696A
Cited
US2148535A
Cited
US2226013A
Cited
US2215937A
Cited
US2431081A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-07-10 | 1954-01-09 | 1954-07-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-07-10 | 1958-01-09 | 1958-07-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-07-10 | 1962-01-09 | 1962-07-11 | $7700.00 | Window Closed / Lapsed |