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US2816737A
Expired / Lapsed
US
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Drills
Assignee: TERMITE DRILLS Inc
•
Filing: 1955-07-05
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Granted: 1957-12-17
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Expires: 1975-07-05
Abstract
No abstract record available.
Inventors
- 👤 William C Kinard
- 👤 Madre Sierra
- 👤 Max L Green
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 22:32
CPC Classifications
E; E21; E21B; E21B10/00; E21B10/62; E21B10/02; E21B10/26; E21B10/44; E21B10/46; E21B10/58; Y; Y10; Y10T; Y10T408/00; Y10T408/89; Y10T408/892; Y10T408/8923; Y10T408/8925
Claims Analysis
Total Claims: 0
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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) | 1960-12-16 | 1961-06-17 | 1961-12-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-12-16 | 1965-06-17 | 1965-12-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-12-16 | 1969-06-17 | 1969-12-17 | $7700.00 | Window Closed / Lapsed |