Patent US3634152A successfully refreshed from Google Patents.
US3634152A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Match head composition
Assignee: Kawase Bussan KK
•
Filing: 1969-09-08
•
Granted: 1972-01-11
•
Expires: 1989-09-08
Abstract
Abstract A composition which is applied to the end of a match stick comprises shellac, sulphur, barium chlorate, diatomaceous earth, glue and polyvinyl chloride.
Inventors
- 👤 Takeru Yanagisawa
- 👤 Yoshikyo Mega
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 10:47
CPC Classifications
C; C06; C06F; C06F3/00
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
58 words
A composition as set forth in claim 1 comprising 10-15 percent shellac, 3-5 percent of sulfur, both finer than the particle size of 120 mesh, 5-8 percent of diatomaceous earth within the particle size of 120-200 mesh, 60-80 percent of barium chlorate finer than the particle size of 120 mesh and 2 percent or less of polyvinyl chloride.
Claim 2
Dependent Claim
17 words
A composition as set forth in claim 1 wherein the said polyvinyl chloride is vinyl chloride powder.
Claim 3
Dependent Claim
47 words
A composition as set forth in claim 1 wherein the particle size of the shellac is less that the particle size of 120 mesh, the sulfur is finer that the particle size of 120 mesh and the barium chlorate is within the particle size of 120-200 mesh.
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) | 1975-01-10 | 1975-07-12 | 1976-01-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-01-10 | 1979-07-12 | 1980-01-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-01-10 | 1983-07-12 | 1984-01-11 | $7700.00 | Window Closed / Lapsed |