US2550797A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flexible drinking straw
Assignee: Individual
•
Filing: 1948-06-05
•
Granted: 1951-05-01
•
Expires: 1968-06-05
Abstract
No abstract record available.
Inventors
- 👤 Joseph B Friedman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 10:57
CPC Classifications
A; A47; A47G; A47G21/00; A47G21/18; A47G21/186; B; B29; B29C; B29C53/00; B29C53/22; B29C53/30; B31; B31D; B31D5/00; B31D5/0095; B31F; B31F1/00; B31F1/20; B31F1/205
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US754948A
Cited
US2094268A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-04-30 | 1954-10-30 | 1955-05-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-04-30 | 1958-10-30 | 1959-05-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-04-30 | 1962-10-30 | 1963-05-01 | $7700.00 | Window Closed / Lapsed |