Patent US3277977A successfully refreshed from Google Patents.
US3277977A
Expired / Lapsed
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Seismic surveying with multiple falling weights
Assignee: Pan American Petroleum Corp
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Filing: 1963-10-28
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Granted: 1966-10-11
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Expires: 1983-10-28
Abstract
No abstract record available.
Inventors
- 👤 Silverman Daniel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 02:45
CPC Classifications
G; G01; G01V; G01V1/00; G01V1/02; G01V1/143; G01V1/147
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
100 words
SEISMIC WAVE GENERATING APPARATUS COMPRISING A VEHICLE, A MASS, MEANS ON SAID VEHCILE FOR ELEVATING AND HOLDING SAID MASS AT A SUBSTANTIAL HEIGHT ABOVE THE GROUND SURFACE, MEANS ASSOCIATED WITH SAID ELEVATING AND HOLDING MEANS FOR RELEASING SAID MEANS FROM SAID HOLDING MEANS TO PERMIT IT TO FALL AND STRIKE THE EARTH''S SURFACE AND GENERATE A SEISMIC IMPULSE, MEANS FOR MEASURING THE HEIGHT OF A REFERENCE POINT ON SAID MASS ABOVE THE GROUND SURFACE VERTICALLY BENEATH SAID MASS, AND MEANS RESPONSIVE TO SAID HEIGHT-MEASURING MEANS AND ACTING ON SAID ELEVATING AND HOLDING MEANS TO RAISE OR LOWER SAID MASS AND
Claim 2
Dependent Claim
100 words
SEISMIC WAVE GENERATING APPARATUS COMPRISING A VEHICLE, A MASS, MEANS ON SAID VEHCILE FOR ELEVATING AND HOLDING SAID MASS AT A SUBSTANTIAL HEIGHT ABOVE THE GROUND SURFACE, MEANS ASSOCIATED WITH SAID ELEVATING AND HOLDING MEANS FOR RELEASING SAID MEANS FROM SAID HOLDING MEANS TO PERMIT IT TO FALL AND STRIKE THE EARTH''S SURFACE AND GENERATE A SEISMIC IMPULSE, MEANS FOR MEASURING THE HEIGHT OF A REFERENCE POINT ON SAID MASS ABOVE THE GROUND SURFACE VERTICALLY BENEATH SAID MASS, AND MEANS RESPONSIVE TO SAID HEIGHT-MEASURING MEANS AND ACTING ON SAID ELEVATING AND HOLDING MEANS TO RAISE OR LOWER SAID MASS AND
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-10-10 | 1970-04-11 | 1970-10-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-10 | 1974-04-11 | 1974-10-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-10 | 1978-04-11 | 1978-10-11 | $7700.00 | Window Closed / Lapsed |