US3583890A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Underlay for rugs or mats to be placed on a carpet with a deep pile
Assignee: A KOLCKMANN OHG
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Filing: 1968-07-23
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Granted: 1971-06-08
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Expires: 1988-07-23
Abstract
Abstract AN UNDERLAY FOR PLACING BETWEEN A MAT AND A DEEP-PILE CARPET, COMPRISING A FLEXIBLE LATTICE STRUCTURE OF THREADS, A NON-SLIP COATING ON ONE SIDE OF SAID LATTICE STRUCTURE AND A TEXTILE FIBRE FLOCK ON THE OTHER SIDE OF SAID STRUC- TURE, THE FLOCK BEING ARRANGED AROUND THE THREADS OF THE LATTICE STRUCTURE AND RADIALLY ALIGNED SO AS TO POINT TO THE CENTRES OF THE INDIVIDUAL THREADS.
Inventors
- 👤 Claus Kolckmann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:15
CPC Classifications
A; A47; A47G; A47G27/00; A47G27/04; A47G27/0406; A47G27/0412; Y; Y10; Y10T; Y10T428/00; Y10T428/23907; Y10T428/23914; Y10T428/23943; Y10T428/23979; Y10T428/24; Y10T428/24058; Y10T428/24074; Y10T428/29; Y10T428/2913; Y10T428/2933; Y10T428/2938
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-06-07 | 1974-12-07 | 1975-06-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-07 | 1978-12-07 | 1979-06-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-07 | 1982-12-07 | 1983-06-08 | $7700.00 | Window Closed / Lapsed |