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Patent US3168982A successfully refreshed from Google Patents.
US3168982A
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Drinking straw
Assignee: Individual
•
Filing: 1963-03-07
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Granted: 1965-02-09
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Expires: 1983-03-07
Abstract
No abstract record available.
Inventors
- 👤 Harry E Davis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 11:47
CPC Classifications
A; A47; A47G; A47G21/00; A47G21/18
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
46 words
A DRINKING STRAW COMPRISING A HELICALLY WOUND SINGLE INITIALLY FLAT STRIP OF SHEET MATERIAL THAT HAS BEEN FIRST CRINKLED THEN FORMED WITH A RIB DURING THE WINDING PROCESS SO THAT THE FINISHED STRAW IS A GENERALLY CYLINDRICAL TUBE HAVING AT LEAST ONE HELICAL RIB EXTENDING OUTWARDLY
References Cited (Backward Citations)
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Cited
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US2072580A
Cited
GB495199A
Cited
US2405909A
Cited
US2550797A
Cited
US2983616A
Cited
US3025004A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-02-09 | 1968-08-10 | 1969-02-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-02-09 | 1972-08-10 | 1973-02-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-02-09 | 1976-08-10 | 1977-02-09 | $7700.00 | Window Closed / Lapsed |