Patent US3217366A successfully refreshed from Google Patents.
US3217366A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sound projecting shell
Assignee: Individual
•
Filing: 1959-11-18
•
Granted: 1965-11-16
•
Expires: 1979-11-18
Abstract
No abstract record available.
Inventors
- 👤 Harry J Wenger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 01:17
CPC Classifications
B; B60; B60P; B60P3/00; B60P3/025; B60P3/0252; E; E04; E04B; E04B1/00; E04B1/343; E04B1/34336; E04H; E04H3/00; E04H3/10; E04H3/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
128 words
A SOUND PROJECTING SHELL COMPRISING, A WHEELED VAN OPEN AT ONE SIDE, A PLURALITY OF FIXED RISERS SECURED THEREIN, A SERIES OF INDIVIDUALLY MOVABLE RISERS SHORTER THAN SAID FIXED RISERS ENGAGED WITH AND POSITIONED ADJACENT TO SAID FIXED RISERS SELECTIVELY TO FORM A FLAT STAGE AND CONSECUTIVE RISERS ALTERNATELY, A CANOPY HINGED TO SAID VAN AT THE TOP OF ITS OPEN SIDE, AND MEANS FOR OPENING, SUPPORTED IN AN OPEN POSITION, AND CLOSING SAID CANOPY SELECTIVELY; SAID MEANS COMPRISING, ARMS PIVOTED TO SAID CANOPY, TRACKS SECURED TO SAID VAN, SAID ARMS HAVING ENDS SLIDABLY ENGAGING SAID TRACKS, SHEAVE POSITIONED NEAR SAID TRACKS, CABLES REEVED OVER SAID SHEAVES, MEANS SECURING SAID CABLES TO THE ARM ENDS IN SAID TRACKS, AND A WINCH FOR MOVING SAID CABLE IN TWO DIRECTIONS.
Claim 2
Dependent Claim
128 words
A SOUND PROJECTING SHELL COMPRISING, A WHEELED VAN OPEN AT ONE SIDE, A PLURALITY OF FIXED RISERS SECURED THEREIN, A SERIES OF INDIVIDUALLY MOVABLE RISERS SHORTER THAN SAID FIXED RISERS ENGAGED WITH AND POSITIONED ADJACENT TO SAID FIXED RISERS SELECTIVELY TO FORM A FLAT STAGE AND CONSECUTIVE RISERS ALTERNATELY, A CANOPY HINGED TO SAID VAN AT THE TOP OF ITS OPEN SIDE, AND MEANS FOR OPENING, SUPPORTED IN AN OPEN POSITION, AND CLOSING SAID CANOPY SELECTIVELY; SAID MEANS COMPRISING, ARMS PIVOTED TO SAID CANOPY, TRACKS SECURED TO SAID VAN, SAID ARMS HAVING ENDS SLIDABLY ENGAGING SAID TRACKS, SHEAVE POSITIONED NEAR SAID TRACKS, CABLES REEVED OVER SAID SHEAVES, MEANS SECURING SAID CABLES TO THE ARM ENDS IN SAID TRACKS, AND A WINCH FOR MOVING SAID CABLE IN TWO DIRECTIONS.
References Cited (Backward Citations)
US1156693A
Cited
US1219443A
Cited
US1238228A
Cited
US1619063A
Cited
US1444156A
Cited
US1726499A
Cited
FR644431A
Cited
GB351947A
Cited
US2155876A
Cited
US2146668A
Cited
US2538736A
Cited
US2551207A
Cited
US2493258A
Cited
DE804129C
Cited
GB687623A
Cited
US2753440A
Cited
US2672582A
Cited
US2890498A
Cited
US2954260A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-11-15 | 1969-05-17 | 1969-11-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-15 | 1973-05-17 | 1973-11-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-15 | 1977-05-17 | 1977-11-16 | $7700.00 | Window Closed / Lapsed |