US3187098A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Foetal heart-beat detector
Assignee: Bruce Peebles and Co Ltd
•
Filing: 1962-03-28
•
Granted: 1965-06-01
•
Expires: 1982-03-28
Abstract
No abstract record available.
Inventors
- 👤 Farrar Walter
- 👤 Leonard Jack Lawrence
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 19:28
CPC Classifications
A; A61; A61B; A61B5/00; A61B5/43; A61B5/4306; A61B5/4343; A61B5/4362; A61B5/02; A61B5/024; A61B5/02411; A61B7/00; A61B7/02; A61B7/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
56 words
A FOETAL HEARBEAT DETECTOR INCLUDING A SLAB MEMBER HAVING A RIGID FLAT SURFACE FOR MOUNTING AGAINST THE MOTHER''S BODY, AND ELASTIC BELT ATTACHED TO THE SLAB FOR HOLDING THE SLAB MEMBER IN POSITION, A CAPSULE MENTIONED IN A CAVITY IN THE SLAB MEMBER, A VIBRATORY ROD OF PIEZOELECTRIC CRYSTAL MOUNTED AS A CANTILEVER IN THE CAPSULE
Claim 2
Dependent Claim
56 words
A FOETAL HEARBEAT DETECTOR INCLUDING A SLAB MEMBER HAVING A RIGID FLAT SURFACE FOR MOUNTING AGAINST THE MOTHER''S BODY, AND ELASTIC BELT ATTACHED TO THE SLAB FOR HOLDING THE SLAB MEMBER IN POSITION, A CAPSULE MENTIONED IN A CAVITY IN THE SLAB MEMBER, A VIBRATORY ROD OF PIEZOELECTRIC CRYSTAL MOUNTED AS A CANTILEVER IN THE CAPSULE
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) | 1968-05-31 | 1968-11-30 | 1969-06-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-05-31 | 1972-11-30 | 1973-06-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-05-31 | 1976-11-30 | 1977-06-01 | $7700.00 | Window Closed / Lapsed |