Patent US2038749A successfully refreshed from Google Patents.
Patent US3247857A successfully refreshed from Google Patents.
US3247857A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dental floss
Assignee: Individual
•
Filing: 1965-06-23
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Granted: 1966-04-26
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Expires: 1985-06-23
Abstract
No abstract record available.
Inventors
- 👤 Maurice S Kanbar
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 17:43
CPC Classifications
A; A61; A61C; A61C15/00; A61C15/04; A61C15/041
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
30 words
A DENTAL FLOSS CONSTITUTED BY AN EXTRUDED POLYMER RIBBON WHICH IS STRETCH-ORIENTED TO INCREASE ITS STRENGTH AND WHICH IS LOOSELY TWISTED INTO A HELIX FORMING A HOLLOW AND COMPRESSIBLE TUBE.
Claim 2
Dependent Claim
30 words
A DENTAL FLOSS CONSTITUTED BY AN EXTRUDED POLYMER RIBBON WHICH IS STRETCH-ORIENTED TO INCREASE ITS STRENGTH AND WHICH IS LOOSELY TWISTED INTO A HELIX FORMING A HOLLOW AND COMPRESSIBLE TUBE.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-04-25 | 1969-10-25 | 1970-04-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-04-25 | 1973-10-25 | 1974-04-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-04-25 | 1977-10-25 | 1978-04-26 | $7700.00 | Window Closed / Lapsed |