Patent US1237877A successfully refreshed from Google Patents.
Patent US3326508A successfully refreshed from Google Patents.
US3326508A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Slidable caster
Assignee: BORN Manufacturing CO
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Filing: 1965-10-21
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Granted: 1967-06-20
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Expires: 1985-10-21
Abstract
No abstract record available.
Inventors
- 👤 Robert E Born
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 12:08
CPC Classifications
A; A47; A47B; A47B91/00; A47B91/06; A47B2091/063
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
121 words
A SLIDABLE CASTER FOR INSERTION BENEATH A FLOOR CONTACT PORTION OF A BULKY STRUCTURE TO ENABLE EASY SLIDING MOVEMENT OF THE STRUCTURE ALONG A FLOOR SURFACE, SAID CASTER COMPRISING AN ADAPTER BODY TO SUPPORT THE FLOOR CONTACT PORTION OF THE STRUCTURE IN ANTISLIDE ENGAGEMENT, SAID BODY BEING A RIGID BLOCK HAVING AN UPPER FACE COVERED WITH PRESSURE SENSITIVE ADHESIVE, AND A SLIDE SHOE UNDERLYING SAID BODY, SAID SHOE BEING OF TEFLON SHEET STOCK HAVING AN ETCHED UPPER FACE SECURED BY ADHESIVE TO SAID BLOCK, SAID SHOE HAVING A SMOOTH UNDER FACE OF LUBRIC PLASTIC MATERIAL FOR ANTIFRICTION SLIDING MOVEMENT DURING HIGH PRESSURE LOADING AGAINST SUCH FLOOR SURFACE AND HAVING A CIRCUMAMBIENT MARGINAL LIP PORTION FLEXIBLE TO RIDE OVER FLOOR SURFACE IRREGULARITIES.
Claim 2
Dependent Claim
121 words
A SLIDABLE CASTER FOR INSERTION BENEATH A FLOOR CONTACT PORTION OF A BULKY STRUCTURE TO ENABLE EASY SLIDING MOVEMENT OF THE STRUCTURE ALONG A FLOOR SURFACE, SAID CASTER COMPRISING AN ADAPTER BODY TO SUPPORT THE FLOOR CONTACT PORTION OF THE STRUCTURE IN ANTISLIDE ENGAGEMENT, SAID BODY BEING A RIGID BLOCK HAVING AN UPPER FACE COVERED WITH PRESSURE SENSITIVE ADHESIVE, AND A SLIDE SHOE UNDERLYING SAID BODY, SAID SHOE BEING OF TEFLON SHEET STOCK HAVING AN ETCHED UPPER FACE SECURED BY ADHESIVE TO SAID BLOCK, SAID SHOE HAVING A SMOOTH UNDER FACE OF LUBRIC PLASTIC MATERIAL FOR ANTIFRICTION SLIDING MOVEMENT DURING HIGH PRESSURE LOADING AGAINST SUCH FLOOR SURFACE AND HAVING A CIRCUMAMBIENT MARGINAL LIP PORTION FLEXIBLE TO RIDE OVER FLOOR SURFACE IRREGULARITIES.
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) | 1970-06-19 | 1970-12-19 | 1971-06-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-06-19 | 1974-12-19 | 1975-06-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-06-19 | 1978-12-19 | 1979-06-20 | $7700.00 | Window Closed / Lapsed |