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Patent US2472248A successfully refreshed from Google Patents.
US2472248A
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Assignee: B F Gladding & Co Inc
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Filing: 1947-02-01
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Granted: 1949-06-07
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Expires: 1967-02-01
Abstract
No abstract record available.
Inventors
- 👤 Cox James Victor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 14:19
CPC Classifications
B; B65; B65H; B65H75/00; B65H75/02; B65H75/04; B65H75/08; B65H75/14; B65H2701/00; B65H2701/30; B65H2701/31; B65H2701/50; B65H2701/51; B65H2701/513; B65H2701/5136
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US550701A
Cited
GB189922131A
Cited
GB145918A
Cited
US1396481A
Cited
US1475704A
Cited
US1591771A
Cited
US2201305A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-06-06 | 1952-12-06 | 1953-06-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-06-06 | 1956-12-06 | 1957-06-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-06-06 | 1960-12-06 | 1961-06-07 | $7700.00 | Window Closed / Lapsed |