Patent US3263258A successfully refreshed from Google Patents.
US3263258A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Toothbrush
Assignee: Lever Brothers Co
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Filing: 1965-04-01
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Granted: 1966-08-02
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Expires: 1985-04-01
Abstract
No abstract record available.
Inventors
- 👤 David E Burge
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 12:43
CPC Classifications
A; A46; A46B; A46B9/00; A46B9/02; A46B9/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
107 words
A BRUSH COMPRISING A BODY PORTION AND A PLURALITY OF TUFTS ATTACHED TO SAID BODY PORTION, EACH OF SAID TUFTS COMPRISING A FIRST, A SECOND, AND A THIRD GROUP OF BRISTLES, EACH BRISTLE OF SAID FIRST GROUP OF BRISTLES HAVING A DIAMETER OF APPROXIMATELY .009 INCH, EACH BRISTLE OF SAID SECONG GROUP OF BRISTLES HAVING A DIAMETER OF APPROXIMATELY .012 INCH, AND EACH BRISTLE OF SAID THIRD GROUP OF BRISTLES HAVING A DIAMETER OF APPROXIMATELY 0.13 INCH, SAID THIRD GROUP OF BRISLTES BEING POSITIONED IN THE CENTER OF EACH TUFT, AND SAID FIRST AND SECOND GROUPS OF BRISTLES BEING ALTERNATELY ARRANGED AROUND SAID THIRD GROUP OF BRISTLES.
Claim 2
Dependent Claim
107 words
A BRUSH COMPRISING A BODY PORTION AND A PLURALITY OF TUFTS ATTACHED TO SAID BODY PORTION, EACH OF SAID TUFTS COMPRISING A FIRST, A SECOND, AND A THIRD GROUP OF BRISTLES, EACH BRISTLE OF SAID FIRST GROUP OF BRISTLES HAVING A DIAMETER OF APPROXIMATELY .009 INCH, EACH BRISTLE OF SAID SECONG GROUP OF BRISTLES HAVING A DIAMETER OF APPROXIMATELY .012 INCH, AND EACH BRISTLE OF SAID THIRD GROUP OF BRISTLES HAVING A DIAMETER OF APPROXIMATELY 0.13 INCH, SAID THIRD GROUP OF BRISLTES BEING POSITIONED IN THE CENTER OF EACH TUFT, AND SAID FIRST AND SECOND GROUPS OF BRISTLES BEING ALTERNATELY ARRANGED AROUND SAID THIRD GROUP OF BRISTLES.
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) | 1969-08-01 | 1970-01-31 | 1970-08-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-01 | 1974-01-31 | 1974-08-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-01 | 1978-01-31 | 1978-08-02 | $7700.00 | Window Closed / Lapsed |