Patent US2442946A successfully refreshed from Google Patents.
US2442946A
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Apparatus for producing sheet material
Assignee: ROPE SOLES Inc
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Filing: 1944-08-08
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Granted: 1948-06-08
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Expires: 1964-08-08
Abstract
No abstract record available.
Inventors
- 👤 Richard E Barton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:23
CPC Classifications
B; B65; B65H; B65H81/00; B65H81/06; B65H81/08; A; A43; A43B; A43B13/00; A43B13/02; A43D; A43D29/00; B29; B29C; B29C53/00; B29C53/56; B29C53/564; B29C69/00; B29C69/001; B29C69/002; B29C69/003; B29C70/00; B29C70/04; B29C70/28; B29C70/30; B29C70/34; B29C70/347; B29D; B29D25/00; B29K; B29K2021/00; B29K2105/00; B29K2105/06; B29K2105/08; B29L; B29L2031/00; B29L2031/48; B29L2031/50; B29L2031/504
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US249525A
Cited
US537730A
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US892660A
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US1464632A
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US1674772A
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Cited
US1661184A
Cited
US1730657A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-06-08 | 1951-12-08 | 1952-06-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-06-08 | 1955-12-08 | 1956-06-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-06-08 | 1959-12-08 | 1960-06-08 | $7700.00 | Window Closed / Lapsed |