US2553481A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Facing machine
Assignee: Individual
•
Filing: 1947-10-20
•
Granted: 1951-05-15
•
Expires: 1967-10-20
Abstract
No abstract record available.
Inventors
- 👤 Sharples Arthur George
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 02:52
CPC Classifications
B; B28; B28B; B28B11/00; B28B11/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1517713A
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US1523275A
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DE504763C
Cited
US1750113A
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US1810619A
Cited
US2176945A
Cited
GB491561A
Cited
GB517305A
Cited
US2292366A
Cited
GB557809A
Cited
US2399822A
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US2401663A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-05-14 | 1954-11-13 | 1955-05-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-05-14 | 1958-11-13 | 1959-05-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-05-14 | 1962-11-13 | 1963-05-15 | $7700.00 | Window Closed / Lapsed |