US2631332A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Internal spreader for gusseting layflat tubing
Assignee: Plax Corp
•
Filing: 1949-06-23
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Granted: 1953-03-17
•
Expires: 1969-06-23
Abstract
No abstract record available.
Inventors
- 👤 Clarence G Reber
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 21:28
CPC Classifications
B; B29; B29C; B29C53/00; B29C53/02; B29C53/10; B29C48/00; B29C48/03; B29C48/09; B29C48/10; B29C48/25; B29C48/88; B29C48/885; B29C48/90; B29C48/901; B29C48/911; B29C48/9115; B29C48/912; B29C2793/00; B29C2793/0063; B29C48/001; B29C48/0018; B29C48/0019; B29C48/0022; B29C48/903
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US336646A
Cited
US467553A
Cited
US1522234A
Cited
GB431619A
Cited
US2047554A
Cited
US2529897A
Cited
US2544044A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-03-16 | 1956-09-15 | 1957-03-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-03-16 | 1960-09-15 | 1961-03-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-03-16 | 1964-09-15 | 1965-03-17 | $7700.00 | Window Closed / Lapsed |