US3346904A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Glass polishing head having a detachable felt pad
Assignee: MARINE MIDLAND BANK NA
•
Filing: 1964-02-17
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Granted: 1967-10-17
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Expires: 1984-02-17
Abstract
No abstract record available.
Inventors
- 👤 William F Armstrong
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 08:23
CPC Classifications
A; A44; A44B; A44B18/00; B; B24; B24D; B24D11/00; B24D13/00; B24D13/14; B24D13/147; B24D9/00; B24D9/08; B24D9/085; Y; Y10; Y10S; Y10S128/00; Y10S128/15
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
111 words
A POLISHING HEAD FOR GLASS POLISHING MACHINES COMPRISING IN COMBINATION, A FLAT DISK HAVING A SPINDLE ATTACHED TO ONE FACE THEREOF, A FELT POLISHING PAD HAVING SUBSTANTIALLY THE SAME AREA AS THAT OF SAID DISK, CIRCULAR RING SHAPED SHEET MEANS CONFORMING TO AND ADHESIVELY SECURD TO EACH OF SAID DISK AND PAD, SAID SHEET MEANS HAVING A MULTIPLICITY OF CLOSELY SPACED INTERENGAGEABLE HOOKING ELEMENTS THEREON, THE HOOKING ELEMENTS ON ONE OF SAID SHEET MEANS BEING OF FLEXIBLE RESILIENT MATERIAL HAVING HOOKS AT THE ENDS THEREOF AND THE HOOKING ELEMENTS ON THE OTHER SHEET MEANS BEING IN THE FORM OF LOOPS, EACH OF SAID SHEET MEANS BEING OPEN AND UNATTACHED IN THE
Claim 2
Dependent Claim
111 words
A POLISHING HEAD FOR GLASS POLISHING MACHINES COMPRISING IN COMBINATION, A FLAT DISK HAVING A SPINDLE ATTACHED TO ONE FACE THEREOF, A FELT POLISHING PAD HAVING SUBSTANTIALLY THE SAME AREA AS THAT OF SAID DISK, CIRCULAR RING SHAPED SHEET MEANS CONFORMING TO AND ADHESIVELY SECURD TO EACH OF SAID DISK AND PAD, SAID SHEET MEANS HAVING A MULTIPLICITY OF CLOSELY SPACED INTERENGAGEABLE HOOKING ELEMENTS THEREON, THE HOOKING ELEMENTS ON ONE OF SAID SHEET MEANS BEING OF FLEXIBLE RESILIENT MATERIAL HAVING HOOKS AT THE ENDS THEREOF AND THE HOOKING ELEMENTS ON THE OTHER SHEET MEANS BEING IN THE FORM OF LOOPS, EACH OF SAID SHEET MEANS BEING OPEN AND UNATTACHED IN THE
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-10-16 | 1971-04-17 | 1971-10-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-10-16 | 1975-04-17 | 1975-10-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-10-16 | 1979-04-17 | 1979-10-17 | $7700.00 | Window Closed / Lapsed |