US3370386A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Manhole
Assignee: NEW ENGLAND REALTY CO
•
Filing: 1965-10-22
•
Granted: 1968-02-27
•
Expires: 1985-10-22
Abstract
No abstract record available.
Inventors
- 👤 Joseph L Martin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 23:52
CPC Classifications
E; E02; E02D; E02D29/00; E02D29/12; E02D29/14; E02D29/1463; E02D29/122; E02D29/149; F; F16; F16L; F16L41/00; F16L41/02; F16L41/03; F16L7/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1350306A
Cited
GB507111A
Cited
US2810690A
Cited
US3097166A
Cited
US3263378A
Cited
US3196813A
Cited
US3177284A
Cited
US3237538A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-02-26 | 1971-08-28 | 1972-02-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-02-26 | 1975-08-28 | 1976-02-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-02-26 | 1979-08-28 | 1980-02-27 | $7700.00 | Window Closed / Lapsed |