US3626458A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Drums
Assignee: Individual
•
Filing: 1970-11-02
•
Granted: 1971-12-07
•
Expires: 1990-11-02
Abstract
Abstract A drum having transparent shell and heads whereby the performer thereon can be completely viewed during his performance.
Inventors
- 👤 William Zickos
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 20:30
CPC Classifications
G; G10; G10D; G10D13/00; G10D13/10; G10D13/22
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
47 words
A drum comprising a hollow elongated shell with opposing open ends of transparent and relatively rigid material, having at least one drum head of resilient and transparent material mounted on one of the said open ends and securing means for adjustably tensioning said head to said shell.
Claim 2
Dependent Claim
47 words
A drum comprising a hollow elongated shell with opposing open ends of transparent and relatively rigid material, having at least one drum head of resilient and transparent material mounted on one of the said open ends and securing means for adjustably tensioning said head to said shell.
Claim 3
Dependent Claim
19 words
A drum according to claim 1 wherein two said drum heads are mounted on said ends of said shell.
References Cited (Backward Citations)
US2609722A
Cited
US3019685A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-12-06 | 1975-06-07 | 1975-12-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-12-06 | 1979-06-07 | 1979-12-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-12-06 | 1983-06-07 | 1983-12-07 | $7700.00 | Window Closed / Lapsed |