US3306643A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Doorknob cover
Assignee: Individual
•
Filing: 1964-06-18
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Granted: 1967-02-28
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Expires: 1984-06-18
Abstract
No abstract record available.
Inventors
- 👤 Clifton W Reed
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 09:32
CPC Classifications
E; E05; E05B; E05B13/00; E05B13/001; Y; Y10; Y10S; Y10S16/00; Y10S16/02; Y10S16/30; Y10T; Y10T292/00; Y10T292/03; Y10T292/82
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
125 words
A DOORKNOB COVER COMPRISING: A HOLLOW BODY HAVING A STIFF ANNULAR WALL AND HAVING AN OPENING TO ADMIT A DOORKNOB INSIDE THE BODY, AN ELASTIC RETAINING MEANS INTEGRAL WITH THE BODY AND SURROUNDING SAID OPENING, SAID RETAINING MEANS COMPRISING A PLURALITY OF FINGER SEGMENTS EXPANDABLE TO PASS OVER THE DOORKNOB BUT NORMALLY OCCUPYING A CONTRACTED POSITION ENGAGEABLE WITH THE DOORKNOB TO YIELDINGLY RESIST REMOVAL OF THE COVER FROM THE DOORKNOB, SAID FINGER SEGMENTS EXTENDING ANGULARLY OUTWARDLY TO FORM BENDS IN SAID RETAINING MEANS ENGAGEABLE WITH THE DOORKNOB AND TO PROVIDE FREE END PORTIONS ON SAID FINGER SEGMENTS BENDABLE INTO FRICTIONAL ENGAGEMENT WITH THE DOORKNOB, SAID COVER BEING OF A MATERIAL OF SUFFICIENT STIFFNESS TO RETAIN SUBSTANTIALLY ITS ORIGINAL SIZE AND SHAPE UNDER EXTERNAL MANUAL PRESSURE.
Claim 2
Dependent Claim
125 words
A DOORKNOB COVER COMPRISING: A HOLLOW BODY HAVING A STIFF ANNULAR WALL AND HAVING AN OPENING TO ADMIT A DOORKNOB INSIDE THE BODY, AN ELASTIC RETAINING MEANS INTEGRAL WITH THE BODY AND SURROUNDING SAID OPENING, SAID RETAINING MEANS COMPRISING A PLURALITY OF FINGER SEGMENTS EXPANDABLE TO PASS OVER THE DOORKNOB BUT NORMALLY OCCUPYING A CONTRACTED POSITION ENGAGEABLE WITH THE DOORKNOB TO YIELDINGLY RESIST REMOVAL OF THE COVER FROM THE DOORKNOB, SAID FINGER SEGMENTS EXTENDING ANGULARLY OUTWARDLY TO FORM BENDS IN SAID RETAINING MEANS ENGAGEABLE WITH THE DOORKNOB AND TO PROVIDE FREE END PORTIONS ON SAID FINGER SEGMENTS BENDABLE INTO FRICTIONAL ENGAGEMENT WITH THE DOORKNOB, SAID COVER BEING OF A MATERIAL OF SUFFICIENT STIFFNESS TO RETAIN SUBSTANTIALLY ITS ORIGINAL SIZE AND SHAPE UNDER EXTERNAL MANUAL PRESSURE.
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) | 1970-02-27 | 1970-08-29 | 1971-02-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-27 | 1974-08-29 | 1975-02-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-27 | 1978-08-29 | 1979-02-28 | $7700.00 | Window Closed / Lapsed |