US4123824A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tie tacks
Assignee: Individual
•
Filing: 1977-05-09
•
Granted: 1978-11-07
•
Expires: 1997-05-09
Abstract
Abstract A tie tack characterized by a surface adapted to be in contact with a tie covered at least in part with a depressible material adapted to prevent rotation when the tie tack is in service.
Inventors
- 👤 Herbert B. Roberts
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 15:49
CPC Classifications
A; A44; A44B; A44B9/00; A44B9/02; A44B9/08; Y; Y10; Y10T; Y10T24/00; Y10T24/19; Y10T24/1976
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
86 words
A tie tack wherein at least one surface adapted to be in contact with a tie is covered at least in part with a layer of non-staining depressible polymeric plastic polyurethane foam material, said layer of depressible polymeric plastic polyurethane foam material ranging in thickness from about 1/32 inch to about 1/8 inch, thick enough to engage the tie when in service to prevent rotation of exposed parts of a tie tack and thin enough to avoid interference with the normal functioning of the tie tack.
Claim 2
Dependent Claim
86 words
A tie tack wherein at least one surface adapted to be in contact with a tie is covered at least in part with a layer of non-staining depressible polymeric plastic polyurethane foam material, said layer of depressible polymeric plastic polyurethane foam material ranging in thickness from about 1/32 inch to about 1/8 inch, thick enough to engage the tie when in service to prevent rotation of exposed parts of a tie tack and thin enough to avoid interference with the normal functioning of the tie tack.
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) | 1981-11-06 | 1982-05-08 | 1982-11-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-11-06 | 1986-05-08 | 1986-11-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-11-06 | 1990-05-08 | 1990-11-07 | $7700.00 | Window Closed / Lapsed |