US3284819A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gymnastic floor covering
Assignee: Nissen Corp
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Filing: 1964-07-28
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Granted: 1966-11-15
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Expires: 1984-07-28
Abstract
No abstract record available.
Inventors
- 👤 George P Nissen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 18:03
CPC Classifications
A; A63; A63C; A63C19/00; A63C19/04; A47; A47C; A47C27/00; A47C27/001; Y; Y10; Y10S; Y10S297/00; Y10S297/06; Y10S5/00; Y10S5/922; Y10T; Y10T428/00; Y10T428/18; Y10T428/23; Y10T428/233; Y10T428/24; Y10T428/24008; Y10T428/24017; Y10T428/24479; Y10T428/24496; Y10T428/24504
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
137 words
A GYMNASTIC FLOOR COVERING OF GENERALLY FLAT RECTANGULAR SHAPE COMPRISING A PLURALITY OF FLAT RECTANGULAR BLOCKS OF RESILIENT SHOCK ABSORBING MATERIAL, A PLURALITY OF TOP COVER SHEETS EACH COVERING AN INDIVIDUAL BLOCK, A PLURALITY OF BOTTOM COVER SHEETS EACH COVERING A SET OF TWO PAIRS OF ADJACENT BLOCKS, EACH OF SAID TOP COVER SHEETS BEING ATTACHED TO A BOTTOM COVER SHEET AROUND THE BOTTOM EDGE OF A BLOCK TO HOLD THE BLOCK IN POSITION ON THE BOTTOM COVER SHEET, ONE PAIR OF SAID ADJACENT BLOCKS ON EACH OF SAID BOTTOM COVER SHEETS BEING SWINGABLE RELATIVE TO THE OTHER PAIR ABOUT THE BOTTOM COVER SHEET AND BETWEEN A FIRST LIMIT POSITION IN WHICH THE TOP AND BOTTOM SURFACES RESPECTIVELY OF THE BLOCKS LIE IN THE SAME PLANES AND A SECOND LIMIT POSITION IN WHICH THE BOTTOM SIDES OF
Claim 2
Dependent Claim
137 words
A GYMNASTIC FLOOR COVERING OF GENERALLY FLAT RECTANGULAR SHAPE COMPRISING A PLURALITY OF FLAT RECTANGULAR BLOCKS OF RESILIENT SHOCK ABSORBING MATERIAL, A PLURALITY OF TOP COVER SHEETS EACH COVERING AN INDIVIDUAL BLOCK, A PLURALITY OF BOTTOM COVER SHEETS EACH COVERING A SET OF TWO PAIRS OF ADJACENT BLOCKS, EACH OF SAID TOP COVER SHEETS BEING ATTACHED TO A BOTTOM COVER SHEET AROUND THE BOTTOM EDGE OF A BLOCK TO HOLD THE BLOCK IN POSITION ON THE BOTTOM COVER SHEET, ONE PAIR OF SAID ADJACENT BLOCKS ON EACH OF SAID BOTTOM COVER SHEETS BEING SWINGABLE RELATIVE TO THE OTHER PAIR ABOUT THE BOTTOM COVER SHEET AND BETWEEN A FIRST LIMIT POSITION IN WHICH THE TOP AND BOTTOM SURFACES RESPECTIVELY OF THE BLOCKS LIE IN THE SAME PLANES AND A SECOND LIMIT POSITION IN WHICH THE BOTTOM SIDES OF
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) | 1969-11-14 | 1970-05-16 | 1970-11-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-14 | 1974-05-16 | 1974-11-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-14 | 1978-05-16 | 1978-11-15 | $7700.00 | Window Closed / Lapsed |